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Gas space heating unit
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Patent number 4,805,590
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Issue date Feb 21, 1989
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Alfred J. Farina
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F24 - HEATING RANGES VENTILATING
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Absorption refrigeration cycle generator
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Patent number 4,464,911
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Issue date Aug 14, 1984
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Thermocatalytic Corporation
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Laurence B. Craig
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Heat exchanger
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Patent number 4,442,799
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Issue date Apr 17, 1984
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Laurence B. Craig
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F24 - HEATING RANGES VENTILATING
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Pump impeller
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Patent number 4,433,967
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Issue date Feb 28, 1984
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Lawrence B. Craig
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Porous ceramic combustion reactor
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Patent number 4,416,619
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Issue date Nov 22, 1983
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Thermocatalytic Corp.
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Laurence B. Craig
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Combustion heating system
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Patent number 4,400,152
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Issue date Aug 23, 1983
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Laurence B. Craig
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Combustion heating system
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Patent number 4,388,063
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Issue date Jun 14, 1983
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Laurence B. Craig
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Combustion heating system
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Patent number 4,381,913
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Issue date May 3, 1983
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Laurence B. Craig
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES