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Analog speech scrambling systems (from 1944)

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  • Albert LaFrance
    A report by Bell Telephone Laboratories from 1944; includes descriptions of various techniques (6 MB PDF file):
    Message 1 of 1 , Nov 24, 2010
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      A report by Bell Telephone Laboratories from 1944; includes descriptions of
      various techniques (6 MB PDF file):

      http://coldwar-c4i.net/Other/Speech_Privacy_Systems.pdf



      Albert



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