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Rotating motor vehicle tail pipe
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Patent number 7,086,224
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Issue date Aug 8, 2006
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Corey Perry
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Ammonia injection in NOx control
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Patent number 5,992,141
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Issue date Nov 30, 1999
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Kleen Air Systems, Inc.
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Lester P. Berriman
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Heat exchanger
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Patent number 3,989,101
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Issue date Nov 2, 1976
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Frank A. Manfredi
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F28 - HEAT EXCHANGE IN GENERAL
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Exhaust emission control system
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Patent number 3,968,649
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Issue date Jul 13, 1976
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The Rovac Corporation
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Thomas C. Edwards
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Exhaust purifier system
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Patent number 3,967,445
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Issue date Jul 6, 1976
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Frank A. Manfredi
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3698873
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Patent number 3,698,873
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Issue date Oct 17, 1972
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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2880079
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Patent number 2,880,079
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Issue date Mar 31, 1959
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES