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Screw extruder
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Patent number 5,190,771
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Issue date Mar 2, 1993
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Kraftanlagen AG
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Wilfried Baumgarten
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Heat exchanging body
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Patent number 4,651,811
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Issue date Mar 24, 1987
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Kraftanlagen AG
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Martin Frauenfeld
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H01 - BASIC ELECTRIC ELEMENTS
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Hot gas filter
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Patent number 4,342,574
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Issue date Aug 3, 1982
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Kraftanlagen AG
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Wolfgang Fetzer
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Incinerator
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Patent number 4,156,393
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Issue date May 29, 1979
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Kraftanlagen Aktiengesellschaft
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Heinz Mallek
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G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING