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Head gasket with a check valve
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Patent number 6,305,420
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Issue date Oct 23, 2001
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Federal-Mogul Technology Limited
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Alan William Atkinson
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Gasket manufacture
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Patent number 5,570,501
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Issue date Nov 5, 1996
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T&N Technology Limited
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Alan W. Atkinson
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Blind rivet
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Patent number 5,195,855
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Issue date Mar 23, 1993
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The Bentley-Harris Manufacturing Company
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Alan W. Atkinson
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL