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HELL was a manufacturer of teleprinter, fax and cipher machines, based in Kiel (Germany). The company was founded in 1929 by Rudolf Hell, one of Germany's most important and productive inventors of the previous century. Nevertheless, the HELL company is generally not well-known.

In the period following WWII, HELL built a number of mechanical cipher machines for the German Army (Bundeswehr), mainly under license from the Boris Hagelin company in Switzerland. In 1981, HELL was taken over by Siemens. In 1990, the graphics-related business was merged with Linotype and became known as Lynotype-Hell AG. Rudolf Hell died in 2002 at the age of 100.

 More about HELL

HELL cipher machines on this website
STG-61 hand-held cipher machine (CD-57 clone)
H-54 pin-wheel cipher machine (CX-52 clone)
Further information
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Crypto Museum. Created: Saturday 24 July 2010. Last changed: Saturday, 24 February 2018 - 11:51 CET.
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