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Oil life monitor for diesel engines
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Patent number 6,327,900
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Issue date Dec 11, 2001
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General Motors Corporation
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John E. Mc Donald
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Spring damper with controlled wear area
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Patent number 4,509,473
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Issue date Apr 9, 1985
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General Motors Corporation
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Nshan Hamparian
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Insulated oil cooled piston assembly
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Patent number 4,270,494
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Issue date Jun 2, 1981
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General Motors Corporation
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Robert F. Garter
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Insulated oil cooled piston assembly
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Patent number 4,253,430
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Issue date Mar 3, 1981
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General Motors Corporation
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Robert F. Garter
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Engine lubricating oil pump
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Patent number 4,185,717
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Issue date Jan 29, 1980
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General Motors Corporation
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Harry S. Ford
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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