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Indirect evaporative cooler
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Patent number 5,076,347
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Issue date Dec 31, 1991
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Coolex, Inc.
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Sam F. Fogleman
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F28 - HEAT EXCHANGE IN GENERAL
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3213935
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Patent number 3,213,935
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Issue date Oct 26, 1965
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F28 - HEAT EXCHANGE IN GENERAL
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1748121
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Patent number 1,748,121
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Issue date Feb 25, 1930
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F28 - HEAT EXCHANGE IN GENERAL
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1716681
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Patent number 1,716,681
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Issue date Jun 11, 1929
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1658025
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Patent number 1,658,025
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Issue date Feb 7, 1928
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F28 - HEAT EXCHANGE IN GENERAL
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1622645
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Patent number 1,622,645
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Issue date Mar 29, 1927
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F28 - HEAT EXCHANGE IN GENERAL
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1622024
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Patent number 1,622,024
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Issue date Mar 22, 1927
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F28 - HEAT EXCHANGE IN GENERAL
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1617082
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Patent number 1,617,082
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Issue date Feb 8, 1927
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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1592929
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Patent number 1,592,929
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Issue date Jul 20, 1926
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F28 - HEAT EXCHANGE IN GENERAL
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1418957
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Patent number 1,418,957
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Issue date Jun 6, 1922
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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1352215
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Patent number 1,352,215
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Issue date Sep 7, 1920
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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1178562
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Patent number 1,178,562
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Issue date Apr 11, 1916
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F28 - HEAT EXCHANGE IN GENERAL
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1161513
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Patent number 1,161,513
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Issue date Nov 23, 1915
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F28 - HEAT EXCHANGE IN GENERAL
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1105430
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Patent number 1,105,430
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Issue date Jul 28, 1914
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F28 - HEAT EXCHANGE IN GENERAL
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937976
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Patent number 937,976
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Issue date Oct 26, 1909
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F28 - HEAT EXCHANGE IN GENERAL
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884860
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Patent number 884,860
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Issue date Apr 14, 1908
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F28 - HEAT EXCHANGE IN GENERAL
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883147
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Patent number 883,147
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Issue date Mar 24, 1908
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F28 - HEAT EXCHANGE IN GENERAL
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836951
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Patent number 836,951
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Issue date Nov 27, 1906
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F28 - HEAT EXCHANGE IN GENERAL
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828716
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Patent number 828,716
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Issue date Aug 14, 1906
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F28 - HEAT EXCHANGE IN GENERAL
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772428
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Patent number 772,428
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Issue date Oct 18, 1904
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F28 - HEAT EXCHANGE IN GENERAL
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725841
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Patent number 725,841
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Issue date Apr 21, 1903
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F28 - HEAT EXCHANGE IN GENERAL
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724031
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Patent number 724,031
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Issue date Mar 31, 1903
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F28 - HEAT EXCHANGE IN GENERAL
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686432
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Patent number 686,432
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Issue date Nov 12, 1901
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F28 - HEAT EXCHANGE IN GENERAL
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682403
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Patent number 682,403
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Issue date Sep 10, 1901
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F28 - HEAT EXCHANGE IN GENERAL
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673805
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Patent number 673,805
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Issue date May 7, 1901
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F28 - HEAT EXCHANGE IN GENERAL
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663677
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Patent number 663,677
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Issue date Dec 11, 1900
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F28 - HEAT EXCHANGE IN GENERAL
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658899
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Patent number 658,899
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Issue date Oct 2, 1900
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F28 - HEAT EXCHANGE IN GENERAL