7

Patentti Nr. 314805

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.
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Negara: Finland

Waktu: 2 menit

Kualitas: HD

Terbit: 2020

imdb rating 7

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