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Heat exchanger apparatus
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Patent number 4,574,872
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Issue date Mar 11, 1986
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Matsushita Electric Industrial Co., Ltd.
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Nobuyuki Yano
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F24 - HEATING RANGES VENTILATING
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Rotary regenerative air heater
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Patent number 4,383,573
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Issue date May 17, 1983
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Combustion Engineering, Inc.
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Steven P. Wincze
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger structure
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Patent number 4,000,775
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Issue date Jan 4, 1977
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The Babcock & Wilcox Company
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Albert Eisenstein
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F28 - HEAT EXCHANGE IN GENERAL
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3321011
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Patent number 3,321,011
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Issue date May 23, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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3319707
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Patent number 3,319,707
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Issue date May 16, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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3229752
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Patent number 3,229,752
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Issue date Jan 18, 1966
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F28 - HEAT EXCHANGE IN GENERAL
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3228457
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Patent number 3,228,457
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Issue date Jan 11, 1966
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F28 - HEAT EXCHANGE IN GENERAL
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3125157
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Patent number 3,125,157
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Issue date Mar 17, 1964
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F24 - HEATING RANGES VENTILATING
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2883160
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Patent number 2,883,160
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Issue date Apr 21, 1959
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F28 - HEAT EXCHANGE IN GENERAL
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2858110
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Patent number 2,858,110
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Issue date Oct 28, 1958
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F28 - HEAT EXCHANGE IN GENERAL
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2769619
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Patent number 2,769,619
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Issue date Nov 6, 1956
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F28 - HEAT EXCHANGE IN GENERAL
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2757907
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Patent number 2,757,907
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Issue date Aug 7, 1956
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F28 - HEAT EXCHANGE IN GENERAL
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2692761
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Patent number 2,692,761
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Issue date Oct 26, 1954
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F28 - HEAT EXCHANGE IN GENERAL
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2607564
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Patent number 2,607,564
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Issue date Aug 19, 1952
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F28 - HEAT EXCHANGE IN GENERAL
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2540733
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Patent number 2,540,733
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Issue date Feb 6, 1951
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F28 - HEAT EXCHANGE IN GENERAL
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2503651
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Patent number 2,503,651
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Issue date Apr 11, 1950
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F28 - HEAT EXCHANGE IN GENERAL
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1843252
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Patent number 1,843,252
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Issue date Feb 2, 1932
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F28 - HEAT EXCHANGE IN GENERAL