Patent Nr. 314805

Patent Nr. 314805 (2020)

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.

Genre : Documentary

Actors : -

Release Date : 2020-05-17

Duration : 2 menit

Rating : ⭐ 0/10 (0 votes)



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