Thomas Edison looks at a spherical photometer in a laboratory of General Electric company in the United States.
United States USA Date:1923 Duration:1 min 25 sec Sound:NO SOUND
American inventor Thomas Alva Edison at General Electric company in the United States. Edison with officials in a laboratory of the company. A spherical photometer by which the illuminating ability of a lamp may be accurately measured. Edison and the men watch a woman operating the photometer. Edison looks into the photometer. He looks at many lamps being tested in the laboratory.
This historic stock footage available in HD and SD video. View pricing below video player.
Have a correction or more info about this clip? Edit Now
Be the first to correct or edit this clip's info! Edit Now