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1 to 12 of 8,518 for

Terms: metal

undetermined vacuum tube

American

1900-1950

discharge tube

American

1900-1930

discharge tube (unprepared)

American

1900-1930

part of triode

American

1900-1930

Strobonar 62-A

Heiland Research Corporation

circa 1950

thyratron tube, type KU-676

Westinghouse Electric & Manufacturing Company

1920-1940

EAC R-390A / URR radio receiver

Electronic Assistance Corporation

1960-1965

Tolles 1/2 inch objective belonging with the Zentmayer microscope

Robert B. Tolles

1871

collection of 40 Tolles workshop tools, eyepieces, and objectives

Robert B. Tolles

1860-1874

silver dry cell battery

1880-1900

Curay light applicator

Macalaster Bicknell Company

circa 1930

parts box for objectives and oculars

Robert B. Tolles

1860-1874

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undetermined vacuum tube

discharge tube

discharge tube (unprepared)

part of triode

Strobonar 62-A

thyratron tube, type KU-676

EAC R-390A / URR radio receiver

Tolles 1/2 inch objective belonging with the Zentmayer microscope

collection of 40 Tolles workshop tools, eyepieces, and objectives

silver dry cell battery

Curay light applicator

parts box for objectives and oculars

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Abacus
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Engineer's rule
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Eye Shield
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Eyepiece Adaptor
Facial Profile
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Faraday Cage
Faraday's bag
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Files
Film
Film Editor
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Filter
Filters
Fine Art
Fire Starter
Fire Syringe
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Flask
Flat Panel Display
Floor Plan
Floppy Disk with Software
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Folk Art
Foot rule
Force Gauge
Forceps
Fountain
Frame
Frequency Meter
Frequency Standard
Friction Drive Apparatus
Friction Machine
Fur
Furnace
Fuse Holder
GPS unit
Gaging Rod
Gaging Rod for Liquids
Galton bar
Galvanometer
Galvanometer Accessories
Galvanometer Coils
Galvanometer Light
Galvanometer Needle
Galvanometer Parts
Galvanometer Scale
Galvanometer Shunt
Gas Demonstration Apparatus
Gas Engine
Gas Flow Meter
Gas Generator
Gas Holder
Gas Tank
Gas-Specific Gravity Apparatus
Gasoline Engine
Gauge
Gauge testing apparatus
Gear Box
Gear Reduction
Gearing
Geiger Counter
Geissler Tube Rotator
Gelatine Sheet
Generator
Geomancer's Compass
Glass
Glass Apparatus
Glass Beaker
Glass Bottle
Glass Disk
Glass Piercer
Glass Plate
Glass Rod
Glass Tubes
Glass plate negative
Glasses
Glassware
Glassware-Electricity
Glassware/Ceramics
Glassware/Chemical
Glider
Globe
Globe Stand
Goggles
Gold balance
Goniometer
Graph
Graphic Terminal
Graphometer
Grounded Short Gap
Grove Cell
Gunner's caliper
Gunner's quadrant
Gunter's Scale
Gyroscope
Haemacytometer
Hair Remover
Hammer
Handbill
Handle
Haploscope
Hard Disk
Hard Disk Unit
Hard Drive
Hardware
Harmonic Analyzer
Harmonium
Harmonograph
Headphones
Hearing Aid
Heat Demonstration Apparatus
Heat Tool
Heated Wire Expansion Measurer
Heliostat
Helmet
Helmholtz Sound Synthesizer
Helmholtz resonator
Hero's Engine
Herschel Wedge
Hertz Wave Spark Oscillator
High-Pressure Apparatus
High-Pressure Sample
High-Pressure Samples
Hodometer
Holder
Hook
Horopter model
Hot Air Engine
Humitex Charts
Hummer
Hydraulic Apparatus
Hydraulic Fountain
Hydraulic Press
Hydraulic Pump
Hydraulic Ram
Hydrometer
Hydrometers
Hydrophone
Hydrostatic Balance
Hygrometer
Hypnoscope
Ignitor
Illustration
Inclined Plane
Indicator
Inductance
Inductance Coil
Induction Coil
Inductor
Inductor ?
Inductorium
Inertia Wheel
Infusion Pump
Ink
Ink Dispenser
Insertion Units
Instructions
Instrument Component
Instrument Rack
Insulated Stand
Insulated Stool
Insulating Stand
Insulator
Integraph
Integrator
Intercom
Interference Pattern Apparatus
Interferometer
Interferometer Test Plate
Interferoscope
Interrupter
Ionization Chamber
Iron Filings
Jar
Jewelry Box
Jovilabe
Kaleidophone
Kaleidoscope
Kerr Cell
Key
Key Punch
Keyboard
Kinesimeter
Kite
Kite Meteorograph
Klystron
Knife
Koenig cylinders
Kymograph
Laboratory
Laboratory Apparatus
Laboratory Burner
Laboratory Equipment
Laboratory Glassware
Laboratory Instrument
Laboratory Notes
Ladle
Lamp
Lamp Circuit
Lamp/Alarm
Lantern
Lantern Slide
Lantern Slide Case
Lantern Slide Mount
Lantern Slide Projector
Lantern Slides
Lantern slide carrier
Laser
Lead Hemisphere
Lead Shot
Lens
Lens Cell
Lens Mount
Lens Set
Lens holder
Lenses
Leslie's Cube
Letter
Letter Scale
Lettering Set
Lettering guide
Level
Level (Engineer's)
Leveling Rod
Levels
Leyden Jar
License
Light
Light Box
Light Bulb
Light Bulb Apparatus
Light Bulbs
Light Guide
Light Meter
Light Source
Light Stand
Lighting
Line Driver Unit
Linear Glass Scales
Liquid Cell
Lissajous Apparatus
Lithograph
Locomotive Model
Lodestone
Log
Log Book
Lubricator
Mach Bands Apparatus
Magdeburg Hemispheres
Magic Lantern
Magnet
Magnet Needle
Magnetic Compass
Magnetic Needle
Magnetometer
Magnetron
Magnets
Magnifier
Magnifying Glass
Mallet
Manometer
Manometric Flame Apparatus
Map
Maps
Mass Spectroscopy Apparatus
Mathematical Model
Measuring Device
Measuring Plate
Measuring Rule
Measuring Tape
Measuring engine
Mechanics demonstration apparatus
Medal
Medical Electrical Device
Medical Instrument
Medical Instruments
Medicine Bottle
Megaphone
Memorabilia
Memory Drum
Memoscope
Mercury
Mercury Fountain
Meridian Circle
Metal
Metal Expansion and Contraction
Metal Rod
Metal Sample
Metal Samples
Metal fittings
Meteograph Case
Meteorograph
Meteorological Chart
Meteorology
Meter
Meter rule
Metronome
Mezzotint
Microchip
Microchips
Microfilm
Micrometer
Microphone
Microscope
Microscope Accessories
Microscope Accessory
Microscope Base
Microscope Camera
Microscope Case
Microscope Condenser
Microscope Finder Slide
Microscope Illuminator
Microscope Light Source
Microscope Objective
Microscope Objective Canister
Microscope Ocular
Microscope Optical Bench
Microscope Optics
Microscope Polarizing Optics
Microscope Slide
Microscope Slide Accessories
Microscope Slide Cabinet
Microscope Stage
Microscope Test Slide
Microtome
Microtome Accessory
Microtome Knife
Microtome Knife Strop
Mill Gearing Model
Millikan Oil Drop Apparatus
Miner's Compass
Mineral
Mineral Sample
Mirror
Mirror Blank
Mirror Holder
Miscellaneous
Miscellaneous Parts
Miscellaneous Tools/Instruments
Model
Model Suspension Bridge
Modem
Moist Chamber
Mold
Molecular Model
Money Balance
Monitor
Monitor Terminal
Monochromator
Monroe Calculator
Mortar and Pestle
Motion Picture Camera
Motion Picture Projector
Motor
Mount
Mounted Biological Specimen
Movie Projector
Muffle
Multimeter
Multiplier
Musical Instrument
Musical Instrument Bow
NMR Probe
Napier's Bones
Navigation Equipment
Navigational Instrument
Nephoscope
Nernst Glower
Nernst's apparatus
Neutron Detector
Newton's Rings
Nipher Shield
Nocturnal
Noise Meter
Noisemaker
Notebook
Nozzle
Nuclear Magnetic Resonance
Obedience Experiment
Object glass micrometer
Objective
Objective Prism
Octant
Oil Painting
Olfactometer
Operant Conditioning Chamber
Operant Conditioning Module
Ophthalmometer
Ophthalmotrope
Optical Accessory
Optical Apparatus
Optical Bench
Optical Bench Accessory
Optical Bench Equipment
Optical Component
Optical Demonstration Apparatus
Optical Equipment
Optical Flat
Optical Glass Specimens
Optical Instrument
Optical Projection System
Optical illusion
Optics
Optics Apparatus
Organ Pipe
Orrery
Orthostereoscope
Oscillator
Oscillograph
Oscilloscope
Osmometer
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Oven
Ozone Generator
Page From Book
Painting
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Paper
Paper Roll
Paper Tape Hole Puncher
Papers
Parachute
Parallel rule
Part
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Pascal Vase
Patent
Pattern
Pedometer
Pelorus
Pencil
Pencil Pointer
Pendulum
Pendulum Timer Switch
Penetrometer
Pens
Pentane Lamp
Percussion Apparatus
Perfusion Pump
Perimeter
Peristaltic Pump
Permeameter
Pestle
Phacoscope
Phonautograph
Phonodeik recording
Phonograph
Phonograph Records
Phoroptor
Phosphorescent Specimens
Phosphoroscope
Photobioscope
Photocell
Photoelectric Cell
Photograph
Photographic Apparatus
Photographic Chemicals
Photographic Equipment
Photographic Filters
Photographic Lens
Photographic Plate
Photographic Plate Holder
Photographic Plates
Photographic Slides
Photographic Viewer
Photographic accessories
Photographic film
Photographs
Photometer
Photomicrograph
Photomultiplier Tube
Photostat
Physics
Physics Demonstration
Physics Experiment
Piezometer
Pigeon Chamber
Pipette Maker
Planar Memory Module
Plane Table
Planetarium
Planimeter
Planisphere
Plaque
Plates
Plotting device
Plug Board
Plumb Bob
Plume
Pneumatic Trough
Pocket Calculator
Polarimeter
Polariscope
Polarity Switch
Polarization
Polarization Apparatus
Polarization Specimens
Polarizer
Pole
Ponograph
Porcelain
Portrait
Positioner
Poster
Pot
Potentiometer
Power Amplifier
Power Supply
Press
Pressure Gauge
Price List
Prince Rupert's Drops
Print
Print material
Printer
Printing Block
Prism
Prism Train
Prismatic Compass
Probator
Probe
Programming Tapes
Projection Equipment
Projection Lens
Projection Pointer
Projector
Proportional compass
Prosthetic device
Protractor
Protractor (Navigation Chart)
Proximity Fuse
Psychological test
Pulley
Pulse Generator
Pulse Recorder
Pump model
Punch Card Reader
Punched Tape
Punched Tape Reader
Pursuit Rotor
Puzzle
Pycnometer
Pyrheliometer
Pyrometer
Qibla Indicator
Quadrant
Quartz Prisms
Quartz Slivers
Quincke's tubes
Radar Counter-Measure
Radiation Apparatus
Radiation Demonstration Apparatus
Radio
Radio Amplifier
Radio Apparatus
Radio Box
Radio Broadcast Receiver
Radio Detector
Radio Direction Finder
Radio Frequency Measurement Apparatus
Radio Frequency Oscillator
Radio Latino
Radio Power Supply
Radio Receiver
Radio Relay Key
Radio Remote Control Unit
Radio Surge Protector
Radio Transmitter
Radio Transmitter-Receiver
Radio Tuning Device
Radiograph
Radiosonde
Rain Collector
Rain Gauge
Range Compensator
Range Modulator
Rangefinder
Record
Recorder
Recording
Recording Device
Recording Hygrometer
Recording Paper
Recording Thermometer
Records
Rectifier
Reed
Reflecting Circle
Reflecting Dish
Reflecting Galvanometer
Reflectometer
Reflector
Refractometer
Regulator
Relay
Remote Control
Repeater
Repeater Telegraph
Resistance
Resistance Box
Resistance Bridge Box
Resistance Coil
Resistance Spools
Resistance Standard
Resistance coil block
Resistor
Resnatron
Resonance Box
Resonator
Resonator and Bell
Retardation Coil
Reticule
Retort
Retort Stand
Rheostat
Rifle
Ring Stand
Rock
Rocket
Rod
Rod and Frame Apparatus
Roller Bearings
Rosin
Rotator
Rule
Rule-Folding
Ruler
SIMM Memory Units
Sabine Sound Apparatus
Sand
Sand Glass
Savart's Wheel
Scale
Scale (Ruler)
Scaler
Scintillator
Scioptic Ball
Screen
Sculpture
Seals
Secohmmeter
Sector
Setting Circle
Sewing Machine
Sextant
Shaker
Shocker
Shomescope
Shovel
Shunt
Shutter
Sieve
Sight
Sign
Signal Generator
Silk
Silver
Singing Flame
Sinical Quadrant
Siphon
Siren
Sizing Box
Slide Box
Slide Case
Slide Mounter
Slide Plates
Slide Projector
Slide Rule
Slide Rule and Sundial
Slides
Slit
Snow Gauge
Socket
Solenoid Coil
Sonar
Sonometer
Sorptometer
Sound Analyzer
Sound Apparatus
Sound Pendulum
Sound Receiever Plate
Sound Transmitter
Sound level meter
Sounder
Souvenir
Spangled tube
Spark Coil
Spark Device
Spark Gap
Speaker
Specific Gravity Balance
Spectacles
Spectra
Spectrograph
Spectrograph Plates
Spectroheliometer
Spectrometer
Spectrometer Part
Spectrophotelometer
Spectrophotometer
Spectroscope
Sphere
Spherical Geometry Aid
Spherometer
Sphygmomanometer
Spinthariscope
Spirometer
Spoon
Spotlight
Spring
Sprinkler Head
Squadra Mobile
Square
Stadia Rod
Stand
Standard Cell
Standard measure
Standard resistance
Star Counting Machine
Steam Apparatus
Steam Boiler
Steam Engine Indicator
Steam Engine Model
Stereo Slope Comparator
Stereographic Image
Stereographic Projection
Stereoscope
Stereoscope and Stereo Slides
Stereoscopic Viewer
Stereotactic radiosurgery treatment apparatus
Stereotope
Stethoscope
Still
Stimulator
Stop Clock
Stopper
Storage
Storage Battery
Storage Box
Storage Cabinet
Storage Rack
Storm Glass
Stove
Strength Evaluation Apparatus
String Galvanometer
Strip Chart Recorder
Stroboscope
Sundial
Sunshine recorder
Support
Surface Tension Apparatus
Surgical Headlamp
Survey Mark
Surveying Chain
Surveying Chain Pins
Surveying Equipment
Surveying Stakes
Surveying Tape
Surveyor's Circle
Surveyor's Compass
Surveyor's Compendium
Surveyor's Cross
Surveyor's Level
Surveyor's Quadrant
Surveyor's Tape
Surveyor's Transit
Suspension Strip
Sweep Drive
Switch
Switchboard
Swivel
Syringe
System Unit
T-Square
Table
Tachistoscope
Tags
Tambour
Tangent Galvanometer
Tape Deck
Tape Measurer
Tape Reader
Tape Reel
Tasimeter
Teaching Tool
Telegraph
Telegraph Cable
Telegraph Equipment
Telegraph Key
Telegraph Receiver
Telegraph Recorder
Telegraph Relay
Telegraph Transmitter
Telemeter
Telephone
Telephone Equipment
Telephone Receiver
Telescope
Telescope Accessory
Telescope Focuser
Telescope Mount
Telescope Objective
Telescope Part
Telestereoscope
Television
Television Receiver
Tellurian
Tellurium
Temperature
Temperature Recorder
Tensile Strength Instrument
Tensiometer
Tensometer
Terminal Block
Terrella
Test Equipmenmt
Test Equipment
Test Tube
Test Tube Rack
Textile
Theodolite
Thermo-Hygrograph
Thermocouple
Thermograph
Thermometer
Thermometer Case
Thermometer and Barometer
Thermopile
Thermoscope
Thermostatic Chamber
Thunder House
Time Bomb Mechanism
Time Sense Apparatus
Time Signal Receiver
Timeline of Balloon Ascension
Timer
Tone Arm
Tone Variator
Tongs
Tonometer
Tool
Top
Toy
Tracing Paper
Trade card
Transceiver
Transcriber
Transducer
Transformer
Transit
Transmitter
Transparencies
Tree-Ring Measuring Machine
Triangle
Triode
Tripod
Tripod Stand
Trough
Tube
Tube Holder
Tube Sensitometer
Tubing
Tuner
Tuning Coil
Tuning Fork
Tuning Fork Stand
Tuning Fork with Resonance Box
Tuning Forks
Tuning Peg
Tuning fork on resonance box
Turntable
Tweezers
Typewriter
Ultrasonic Bath Controller (w/ metal bath)
Ultraviolet Light Source
Underwater Sound Apparatus
Universal Joint
Unknown
Upward Pressure Apparatus
Vacuum Bottle
Vacuum Distiller
Vacuum Flask
Vacuum Jar
Vacuum Manometer
Vacuum Pump
Vacuum Tube
Vacuum Tube Mounting
Vacuum Tube Tester
Valve
Variable Resistance Apparatus
Variation Compass
Variometer
Vase
Vessel
Viscometer
Visual Apparatus
Voice Key
Volt Box
Volta Pistol
Voltage Divider
Voltage Regulator
Voltaic Cell
Voltaic Pile
Voltmeter
Voltmeter/ammeter
Volume Indicator
Volume Standard
Washers
Watch
Watchmaker's Tool
Water Pump
Water Sampler
Waterfall Illusion
Wattmeter
Wave Meter
Wave Model
Wave demonstration device
Wax
Weather Station Sensor and Encoder
Weather Vane
Weatherstation Recorder
Weight
Weights
Weights and Pulleys
Welder's glass
Wheatstone Apparatus
Wheatstone Bridge
Whetstone
Whirling Table
Whistle
Whistles
Wind Chest
Wind Recorder
Wind Vane
Winding Key
Windmill
Window
Wire
Wood
Workshop Tool
Wrench
X-Ray Diffraction Camera
X-Ray Equipment
X-ray Machine
X-ray Parts
X-ray Screens
X-ray Tube
Xylophone
Yard rule
Zoetrope
Zoetrope Animation Strip
Zone Plate
pH Meter