Patent Nr. 314805 Poster

Patent Nr. 314805

Release Date
2020-05-17
Runtime
0h 2m
Status
Released
Rating
N/A
Links
IMDb

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.