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Torpedo for extruder
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Patent number 11,305,460
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Issue date Apr 19, 2022
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Compagnie Generale des Etablissements Michelin
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Christophe Bessac
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Continuous two-liquid type mixer
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Patent number 4,976,547
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Issue date Dec 11, 1990
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Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
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Akinori Hisanaga
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Mixing process
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Patent number 4,833,175
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Issue date May 23, 1989
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Polyvoltac Canada Inc.
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Gary W. Boyce
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3881871
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Patent number 3,881,871
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Issue date May 6, 1975
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3795364
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Patent number 3,795,364
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Issue date Mar 5, 1974
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3482822
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Patent number 3,482,822
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Issue date Dec 9, 1969
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3141865
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Patent number 3,141,865
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Issue date Jul 21, 1964
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL