Film·1932·40m

Unsichtbare Brücken

Documentary

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.

Directed by Hans Fritz Wilhelm

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Cast

2 credited

Rolf Gert
Rolf Gert
Alfred Stratmann
Alfred Stratmann

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