Unsichtbare Brücken

0.0 1932 40 min
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.

About

Key details for this title

Director
Hans Fritz Wilhelm

Cast

The cast behind this title

Rolf Gert
Alfred Stratmann

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