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Heat exchanger
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Patent number 4,856,580
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Issue date Aug 15, 1989
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Berwind Corporation
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Richard A. Ley
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F28 - HEAT EXCHANGE IN GENERAL
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Coke cooler
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Patent number 4,667,731
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Issue date May 26, 1987
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Triten Corporation
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Gary J. Baumgartner
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Heat-exchange fan apparatus
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Patent number 4,431,048
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Issue date Feb 14, 1984
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Matsushita Electric Industrial Co., Ltd.
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Kunihito Mori
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F24 - HEATING RANGES VENTILATING
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3921709
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Patent number 3,921,709
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Issue date Nov 25, 1975
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F28 - HEAT EXCHANGE IN GENERAL
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3688837
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Patent number 3,688,837
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Issue date Sep 5, 1972
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F28 - HEAT EXCHANGE IN GENERAL
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3662821
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Patent number 3,662,821
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Issue date May 16, 1972
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3623548
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Patent number 3,623,548
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Issue date Nov 30, 1971
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F28 - HEAT EXCHANGE IN GENERAL
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3613777
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Patent number 3,613,777
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Issue date Oct 19, 1971
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F28 - HEAT EXCHANGE IN GENERAL
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3612168
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Patent number 3,612,168
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Issue date Oct 12, 1971
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F28 - HEAT EXCHANGE IN GENERAL
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3612169
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Patent number 3,612,169
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Issue date Oct 12, 1971
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3599709
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Patent number 3,599,709
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Issue date Aug 17, 1971
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F26 - DRYING
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3565168
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Patent number 3,565,168
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Issue date Feb 23, 1971
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F26 - DRYING
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3548926
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Patent number 3,548,926
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Issue date Dec 22, 1970
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F28 - HEAT EXCHANGE IN GENERAL
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3529661
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Patent number 3,529,661
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Issue date Sep 22, 1970
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F28 - HEAT EXCHANGE IN GENERAL
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3506066
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Patent number 3,506,066
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Issue date Apr 14, 1970
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3500901
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Patent number 3,500,901
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Issue date Mar 17, 1970
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3490754
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Patent number 3,490,754
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Issue date Jan 20, 1970
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F26 - DRYING
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3473603
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Patent number 3,473,603
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Issue date Oct 21, 1969
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F24 - HEATING RANGES VENTILATING
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3457989
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Patent number 3,457,989
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Issue date Jul 29, 1969
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3430690
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Patent number 3,430,690
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Issue date Mar 4, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3430936
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Patent number 3,430,936
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Issue date Mar 4, 1969
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F27 - FURNACES KILNS OVENS RETORTS
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3426838
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Patent number 3,426,838
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Issue date Feb 11, 1969
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F28 - HEAT EXCHANGE IN GENERAL