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Gretag, or Gretacoder Data Systems was a manufacturer of crypto equipment,
based in Regensdorf, Switzerland.
It was led by Dr. Edgar Gretener who was not only a direct competitor
of Boris Hagelin, but also co-operated with him
in a number of projects.
Over the years, Gretag produced a range of commercial, industrial and
military cipher machines.
Not much is known about the history of Gretag and
Gretacoder Data Systems. You can help us by
providing additional information.
In the late 1990s, the company left the crypto market and concentrated on
producing colour imaging tools for the graphical industry. Unfortunately,
the graphical market was already declining and Gretag finally had to close
its doors.
Gretacoder cipher machines on this website:
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This 19" rackmount system, consisted of two units.
One for either side of the communication link.
It was used to encypher and decypher multiplexed
data streams over satellite links.
 More information
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