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Arvid Gerhard Damm
Inventor, engineer and business man - this page is a stub

Arvid Gerhard Damm (27 May 1869 - 7 November 1928) was a Swedish engineer and inventor of cipher machines, best known for his involvement with the company AB Cryptograph, that had been founded in 1916 by Emanuel Nobel 1 for the exploitation of his cryptographic machines [4].

  1. Brother of Alfred Nobel.

Machines
  • ?
    1914
    Cryptotyper
  • A-1
    1917
    Mecano Cryptographer
  • A-2
    1917
    Hand cryptographer
  • ?
    1918
    Cylinder cipher (prototype only)
  • A-1b
    1921
    Electromechanical Cryptographer
  • A-2b
    1922
    Hand Cryptographer
  • A-4
    1922
    Code superencryptor
  • A-21
    1923
    Portable encryptor
  • A-22
    1925
    Portable cryptographer

  • B-1
    1919
    Encryptor/Transmitter (first units delivered to Swedish PTT in 1922)
  • B-13 1
    1925
    Electrocryptograph encryptor/transmitter
  1. Often erroneously identified as the B-18 (which never existed), for example in [2] and [3].

Patents
References
  1. Hans Stadlin, 100 Jahre Boris Hagelin 1892-1992 (German)
    Crypto AG. Crypto Hauszeitung Nr. 11. Jubilieumausgabe September 1992. P 40-43.

  2. Boris Hagelin, Die Geschichte der Hagelin-Cryptos
    Original manuscript by Boris Hagelin in German language. Zug, Fall 1979.

  3. Boris Hagelin, The Story of Hagelin Cryptos
    English translation of the above. BCW Hagelin, Zug, Spring 1981. Later edited by David Kahn and published in Cryptologia, Volume 18, Issue 3, July 1994, pp 204-242.

  4. Wikipedia, Arvid Gerhard Damm
    Retrieved 1 May 2020.

  5. Kjell-Ove Widman & Anders Wik, Damm och AB Cryptograph
    FRA historiska skrifter #27. Bromma, 2017. 40 pages.
Further information
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Crypto Museum. Created: Friday 01 May 2020. Last changed: Tuesday, 16 June 2020 - 06:46 CET.
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