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Motion picture electricity (1914)
Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 35
^ *r INCANDESCENTLAMPS ■* ■K- r^110V- {J ) MOTOR 220 V.MOTOR … ./V 110 V M.P. LAMP /Motion picture theaters · Electric lighting
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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