Unsichtbare Brücken
NR
0 votes
1932
40m
Documentary
Overview
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
Top cast
Details
Status
Released
Release date
August 18, 1932
Budget
—
Revenue
—
Language
German
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