Special searchlights described, including searchlights for ships, hand signal, fire fighting, railroad signaling, motion picture photography, etc.
Special searchlights described, including searchlights for ships, hand signal, fire fighting, railroad signaling, motion picture photography, etc
Spezialscheinwerfer fuer Leucht- und Beleuchtungszwecke
Technik ; 10 , n 9
1955
4 pages
Aufsatz (Zeitschrift)
Deutsch
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