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Nitrogen oxide reduction system
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Patent number 3,972,831
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Issue date Aug 3, 1976
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Gulf Research & Development Company
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Harold Beuther
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3846981
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Patent number 3,846,981
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Issue date Nov 12, 1974
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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3664134
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Patent number 3,664,134
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Issue date May 23, 1972
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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3032968
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Patent number 3,032,968
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Issue date May 8, 1962
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL