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Li. Spr. 60/50
Opto-electronic voice transceiver - this page is a stub

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Documentation
  1. Das Lichtsprechgerät 60/50 mm
    D 878. Berlin, 1 September 1944.
References
  1. Centre for German Communication
    CDV&T. Visited 20 September 2023.

  2. Wikipedia, Free-space optical communication
    Visited 20 September 2023.
Further information
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Crypto Museum. Created: Wednesday 20 September 2023. Last changed: Wednesday, 20 September 2023 - 13:15 CET.
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