Patent Nr. 314805
Patent Nr. 314805 poster
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Patent Nr. 314805

Patentti Nr. 314805
📅 2020 ⭐ 6.7 🕐 2m FI FI

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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