inventor lee deforest examining a radio tube / hollywood, california, united states - lee deforest stock videos & royalty-free footage00:171939 CU Inventor Lee DeForest examining a radio tube / Hollywood, California, United States
inventor lee deforest manufacturing a radio tube / hollywood, california, united states - lee deforest stock videos & royalty-free footage00:171939 MS Inventor Lee DeForest manufacturing a radio tube / Hollywood, California, United States
inventor lee deforest at bench manufacturing radio tube / hollywood, california, united states - lee deforest stock videos & royalty-free footage00:211939 WS Inventor Lee DeForest at bench manufacturing radio tube / Hollywood, California, United States
ascending shot of a foggy forest - lee deforest stock videos & royalty-free footage00:16Ascending shot of a foggy forestFallen Tree
dr. lee deforest w/ radio tube in his laboratory bell lab engineers donald mckinsey & edward winter in lab working men working w/ vitaphone machine... - lee deforest stock videos & royalty-free footage00:26Working on first 'Talkies'Laboratory
drone operator filming the aftermath of destruction left by a severe https://newswire.storyful.com/story/346877 storm in portage, indiana, made a... - lee deforest stock videos & royalty-free footage04:09Drone Operator Spots 'Ditch Weed' in Woods Leveled by Storm
tilt up view of wall full of vacuum tubes; close up of hand holding up vacuum tube; still photographs of thomas edison's house and laboratory;... - lee deforest stock videos & royalty-free footage01:19Wall of vacuum tubes, Thomas Edison working and his notebook, men gathered around machine on top of blueprint, 1940sThomas Edison, Light Bulb, Laboratory