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Page 105 AUSCHWITZ:
                        Technique and Operation
                            of the Gas Chambers ©
 
 
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Document 11 
Document 11
 
Document 12 
Document 12
 
Documents 10, 11 and 12 
  [Federal Republic of Germany, German Patent Office,
Patent No. 861 731, issued on 5th January 1953]
 
Document 10 is the first page of the last Topf patent, for a single-muffle cremation furnace designed by Martin KLETTNER. The main feature of the invention was the almost complete combustion of the corpse (so that the volume of ashes remaining was rarely enough to fill a normal urn) by a system of hot air recovery. The time taken to cremate a corpse was from 30 to 45 minutes. The guillotine-type closing system for the muffle door was that designed by Prüfer for his 8-muffle furnace. It is not known whether this model, a little marvel of technical design, was ever marketed. It incorporated much of the experience gained by Topf in the concentration camps.

Document 11 is the cross-section of the furnace and 12 the longitudinal section. Both drawings are attached to the patent.
 
AUSCHWITZ:
Technique and operation
of the gas chambers

Jean-Claude Pressac
© 1989, The Beate Klarsfeld Foundation
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