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Unsichtbare Brücken

Film

Unsichtbare Brücken

0.0

0h 40m

1932

Synopsis

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.

Director

Hans Fritz Wilhelm

Documentary

Cast & Crew

Rolf Gert

Alfred Stratmann

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