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arc lamp

arc lamp

A. T. Thompson & Company
1895-1910
arc lamp for photomicrographic apparatus

arc lamp for photomicrographic apparatus

A. T. Thompson & Company
circa 1917
arc lamp with electrical interrupter

arc lamp with electrical interrupter

Louis Jules Duboscq
1860-1879, 1882-1885
arc lamp with electrical interrupter

arc lamp with electrical interrupter

Louis Jules Duboscq
1860-1879, 1882-1885
arc lamp with electrical interrupter

arc lamp with electrical interrupter

Louis Jules Duboscq
1860-1879, 1882-1885
arc lamp with mechanical regulator

arc lamp with mechanical regulator

Théodore and Albert Duboscq
1880-1890
carbon arc lamp

carbon arc lamp

Deleuil
1840-1860
carbon arc lamp

carbon arc lamp

Ernst Leitz (company)
1940-1950
carbon arc lamp

carbon arc lamp

American
1900-1950
electric arc lamp

electric arc lamp

Department of Physics, Harvard University
mid 19th-late 19th Century
hand-feed carbon arc lamp

hand-feed carbon arc lamp

American
1890-1910
mechanical feed microscope arc lamp

mechanical feed microscope arc lamp

Bausch & Lomb Optical Company
circa 1948
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The Collection of Historical Scientific Instruments
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p. 617-495-2779 • f. 617-496-5794
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