Patent Nr. 314805
0|2020|0h 2m| FI
Overview: Finnish engineer Eric Tigerstedt solved the dilemma of sound-on-film already before the First World War. All images and sounds in this short film are produced from the surviving test materials originally created in 1914.
Genres: Documentary
Director: Mika Taanila
Votes: 0
Production Companies: 
Elokuvayhtiö Testifilmi
Main Actors:
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