Unsichtbare Brücken (1932)
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
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Rolf Gert as |
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Alfred Stratmann as |
| Directing | Hans Fritz Wilhelm | Director |
| Sound | Wolfgang Zeller | Music |
| Camera | Franz Meinecke | Director of Photography |