Currently indexing
Bibliography
Bibliography
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- Published: Leeds & Northrup Company, Philadelphia
- Year: 1928
- Terms: C5-D3
- Terms: explosives -- gases
- Terms: photography -- aerial
- Terms: Max Kohl A. G.
- Terms: scientific instruments -- twentieth century -- educational
- Terms: gems -- identification
- Terms: Scientific Instruments -- Catalogues
- Terms: C5-B1
- Terms: mineralogy -- instruments
- Terms: geology -- instruments
- Terms: Physics -- Apparatus
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Apparatus for Electrical Resistance Measurements: Catalog 40
Apparatus for Hydrogen Ion Concentration Measurements: Catalog 75
Resistance Thermometers: Catalog 80
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