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7

Unsichtbare Brücken

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In the broadcasting center of a radio station, visitors are informed in a kind of educational course about how "electric waves" are generated and how they are converted into sounds that can then be heard on the radio.
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Genre: Documentaire

Jeter: Rolf Gert, Alfred Stratmann

Équipage: Hans Fritz Wilhelm (Director), Wolfgang Zeller (Music), Franz Meinecke (Director of Photography)

Pays: Germany

Durée: 40 minutes

Qualité: HD

Libération: 1932

imdb rating 7

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