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Gasket system
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Patent number 5,252,154
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Issue date Oct 12, 1993
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Tremco, Inc.
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Kenneth P. Hoffman
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3233316
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Patent number 3,233,316
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Issue date Feb 8, 1966
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3035956
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Patent number 3,035,956
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Issue date May 22, 1962
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2972371
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Patent number 2,972,371
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Issue date Feb 21, 1961
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL