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Crankcase ventilation system
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Patent number 6,123,061
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Issue date Sep 26, 2000
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Cummins Engine Company, Inc.
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Glenn L. Baker
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Closed crankcase ventilation system
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Patent number 5,669,366
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Issue date Sep 23, 1997
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Fleetguard, Inc.
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Donald W. Beach
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Crankcase ventilation system
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Patent number 5,456,239
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Issue date Oct 10, 1995
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Cummins Engine Company, Inc.
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Gregory H. Henderson
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES