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System for controlling fluid flow
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Patent number 7,926,461
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Issue date Apr 19, 2011
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Perkins Engines Company Limited
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Martin W. Dirker
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Valve seal for rotary valve engine
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Patent number 6,718,933
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Issue date Apr 13, 2004
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George J. Coates
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Valve seal for rotary valve engine
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Patent number 6,666,458
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Issue date Dec 23, 2003
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George J. Coates
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Internal combustion engine
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Patent number 4,553,385
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Issue date Nov 19, 1985
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John S. Lamont
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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2215728
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Patent number 2,215,728
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Issue date Sep 24, 1940
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1764480
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Patent number 1,764,480
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Issue date Jun 17, 1930
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1542792
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Patent number 1,542,792
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Issue date Jun 16, 1925
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1411384
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Patent number 1,411,384
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Issue date Apr 4, 1922
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1388758
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Patent number 1,388,758
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Issue date Aug 23, 1921
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1232849
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Patent number 1,232,849
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Issue date Jul 10, 1917
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES