Physikalische Werkstätten AG
founded 1913
Physikalische Werkstätten AG was founded in 1913 by Dr. Gotthelf Leimbach. Originally founded to manufacture devices for for mining and geo-physical research. The business expanded with one section developing scientific teaching materials, this division was renamed „Physikalische Werkstätten mit beschränkter Haftung" in 1918 and in 1921 was reorganized as „Physikalische Werkstätten mit beschränkter Haftung". The company is still in existance today and continues to sell materials to help teach science subjects.