Inventor, Joseph Massolle (center), listening to
Inventor, Joseph Massolle (center), listening to the first screening of German Movietone News. He is using a machine called a Trigeron (Work of Three), invented in 1919 by himself and Josef Engl (left) and Hans Vogt (right). Their technology for a sound track on movie film became the industry standard in the 1920s. - (BSLOC_2014_17_121)
Picture No
11061873
Media ID
45264865
Size
3000px x 2235px
(1.7MB)
Credit
Mary Evans / The Everett Collection
Source
Everett Collection
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Electronics Engl Invented Inventions Lcgr1501 Movietone Occupational Vogt
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