
Patent Nr. 314805
Patentti Nr. 314805
Watch Patent Nr. 314805 on Soap2day. 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.
- Category: Documentary
- Production Country: Finland
- Directed By: Mika Taanila
- Starred By: