Patent Nr. 314805 Trailer

Patent Nr. 314805 Trailer (2020)

17 May 2020 Factual 2 mins

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.

Watch the official Patent Nr. 314805 2020 trailer in HD below.

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Patentti Nro. 314805 Trailer

International Releases Dates

Germany 17 May 2020

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