Patent Nr. 314805
Patent Nr. 314805

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Finnish engineer Eric Tigerstedt solved the dilemma of sound-on-film already before World War I. All images and sounds in this short film are produced from the surviving test materials originally created in 1914.... (Full plot summary below)

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Full Plot Details

Finnish engineer Eric Tigerstedt solved the dilemma of sound-on-film already before World War I. All images and sounds in this short film are produced from the surviving test materials originally created in 1914.

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