Trägerfrequenz-Fernsprechen I-II
1940?
Lehrfilm
Credits
Production company
Alle Credits
Production company
Duration:
220 m, 20 min
Format:
16mm
Video/Audio:
s/w, Lichtton
Titles
Additional titles
- Originaltitel (DD) Trägerfrequenz-Fernsprechen I-II
Versions
Original
Duration:
220 m, 20 min
Format:
16mm
Video/Audio:
s/w, Lichtton