Parallel corrugated vertical sheets formed fluid passage therebetween

Patents Grantslast 30 patents

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    3371709

    • Patent number 3,371,709
    • Issue date Mar 5, 1968
    • F28 - HEAT EXCHANGE IN GENERAL
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    1943855

    • Patent number 1,943,855
    • Issue date Jan 16, 1934
    • C01 - INORGANIC CHEMISTRY
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    1617867

    • Patent number 1,617,867
    • Issue date Feb 15, 1927
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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    1582181

    • Patent number 1,582,181
    • Issue date Apr 27, 1926
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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    1204561

    • Patent number 1,204,561
    • Issue date Nov 14, 1916
    • F28 - HEAT EXCHANGE IN GENERAL
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    968550

    • Patent number 968,550
    • Issue date Aug 30, 1910
    • F28 - HEAT EXCHANGE IN GENERAL
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    835893

    • Patent number 835,893
    • Issue date Nov 13, 1906
    • F28 - HEAT EXCHANGE IN GENERAL
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    509045

    • Patent number 509,045
    • Issue date Nov 21, 1893
    • F28 - HEAT EXCHANGE IN GENERAL
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    503868

    • Patent number 503,868
    • Issue date Aug 22, 1893
    • F28 - HEAT EXCHANGE IN GENERAL
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    471974

    • Patent number 471,974
    • Issue date Mar 29, 1892
    • F28 - HEAT EXCHANGE IN GENERAL
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    457533

    • Patent number 457,533
    • Issue date Aug 11, 1891
    • F28 - HEAT EXCHANGE IN GENERAL
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    436288

    • Patent number 436,288
    • Issue date Sep 9, 1890
    • F28 - HEAT EXCHANGE IN GENERAL
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    181079

    • Patent number 181,079
    • Issue date Aug 15, 1876
    • F28 - HEAT EXCHANGE IN GENERAL
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    92429

    • Patent number 92,429
    • Issue date Jul 13, 1869
    • F28 - HEAT EXCHANGE IN GENERAL
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    90242

    • Patent number 90,242
    • Issue date May 18, 1869
    • F28 - HEAT EXCHANGE IN GENERAL
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    82593

    • Patent number 82,593
    • Issue date Sep 29, 1868
    • F28 - HEAT EXCHANGE IN GENERAL
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    32845

    • Patent number 32,845
    • Issue date Jul 16, 1861
    • F28 - HEAT EXCHANGE IN GENERAL