Patentti Nr. 314805
Patentti Nr. 314805
Filme Patentti Nr. 314805 Ceo film HD. 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.
- Жанр: Документарни
- Држава: Finland
- директор: Mika Taanila
- Глумци: