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Heat exchanger
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Patent number 4,602,682
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Issue date Jul 29, 1986
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Hitachi, Ltd.
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Hisashi Yamamoto
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F28 - HEAT EXCHANGE IN GENERAL
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3908758
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Patent number 3,908,758
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Issue date Sep 30, 1975
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F28 - HEAT EXCHANGE IN GENERAL
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3552487
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Patent number 3,552,487
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Issue date Jan 5, 1971
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F28 - HEAT EXCHANGE IN GENERAL
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3407875
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Patent number 3,407,875
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Issue date Oct 29, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3406751
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Patent number 3,406,751
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Issue date Oct 22, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3196943
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Patent number 3,196,943
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Issue date Jul 27, 1965
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F28 - HEAT EXCHANGE IN GENERAL
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2915294
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Patent number 2,915,294
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Issue date Dec 1, 1959
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F28 - HEAT EXCHANGE IN GENERAL
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2731242
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Patent number 2,731,242
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Issue date Jan 17, 1956
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F28 - HEAT EXCHANGE IN GENERAL
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1576651
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Patent number 1,576,651
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Issue date Mar 16, 1926
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F28 - HEAT EXCHANGE IN GENERAL
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1486556
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Patent number 1,486,556
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Issue date Mar 11, 1924
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F28 - HEAT EXCHANGE IN GENERAL
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1405381
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Patent number 1,405,381
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Issue date Feb 7, 1922
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F28 - HEAT EXCHANGE IN GENERAL
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1000259
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Patent number 1,000,259
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Issue date Aug 8, 1911
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F28 - HEAT EXCHANGE IN GENERAL
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934584
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Patent number 934,584
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Issue date Sep 21, 1909
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F28 - HEAT EXCHANGE IN GENERAL
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829625
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Patent number 829,625
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Issue date Aug 28, 1906
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F28 - HEAT EXCHANGE IN GENERAL
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709051
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Patent number 709,051
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Issue date Sep 16, 1902
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F28 - HEAT EXCHANGE IN GENERAL
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673767
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Patent number 673,767
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Issue date May 7, 1901
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F28 - HEAT EXCHANGE IN GENERAL
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482276
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Patent number 482,276
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Issue date Sep 6, 1892
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F28 - HEAT EXCHANGE IN GENERAL