Patent Nr. 314805 poster

Patent Nr. 314805

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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.

  • Release date
  • May 17, 2020
  • Runtime
  • 2 min
  • Genres
  • Documentary
  • Director
  • Mika Taanila

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