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Elmar Hoff
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Bochum, DE
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last 30 patents
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Patent Grant
Process for producing a tube sheet
Patent number
5,158,729
Issue date
Oct 27, 1992
Akzo nv
Hermann Gemeinhardt
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Tube sheet for apparatus for transferring heat and/or mass, use the...
Patent number
4,984,630
Issue date
Jan 15, 1991
Akzo nv
Hermann Gemeinhardt
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for effecting mass and/or heat transfer
Patent number
4,724,900
Issue date
Feb 16, 1988
Akzo nv
Ulrich Baurmeister
F28 - HEAT EXCHANGE IN GENERAL