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Air conditioner heat-exchanger
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Patent number 5,975,198
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Issue date Nov 2, 1999
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Samsung Electronics Co., Ltd.
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Young-Saeng Kim
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F28 - HEAT EXCHANGE IN GENERAL
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Fin for a heat exchanger
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Patent number 5,582,244
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Issue date Dec 10, 1996
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Behr GmbH & Co.
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Werner Helms
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F28 - HEAT EXCHANGE IN GENERAL
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-
-
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Annular heat exchanger fins
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Patent number 4,005,748
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Issue date Feb 1, 1977
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Champion Home Builders Co.
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Robert D. MacDonald
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3889745
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Patent number 3,889,745
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Issue date Jun 17, 1975
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3771595
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Patent number 3,771,595
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Issue date Nov 13, 1973
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F28 - HEAT EXCHANGE IN GENERAL
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3292689
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Patent number 3,292,689
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Issue date Dec 20, 1966
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3191673
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Patent number 3,191,673
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Issue date Jun 29, 1965
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F28 - HEAT EXCHANGE IN GENERAL
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3080916
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Patent number 3,080,916
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Issue date Mar 12, 1963
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F28 - HEAT EXCHANGE IN GENERAL
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2532301
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Patent number 2,532,301
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Issue date Dec 5, 1950
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F28 - HEAT EXCHANGE IN GENERAL
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2011900
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Patent number 2,011,900
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Issue date Aug 20, 1935
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F28 - HEAT EXCHANGE IN GENERAL
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1915742
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Patent number 1,915,742
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Issue date Jun 27, 1933
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F28 - HEAT EXCHANGE IN GENERAL
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1899417
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Patent number 1,899,417
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Issue date Feb 28, 1933
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F28 - HEAT EXCHANGE IN GENERAL
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1812509
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Patent number 1,812,509
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Issue date Jun 30, 1931
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F28 - HEAT EXCHANGE IN GENERAL
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1752879
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Patent number 1,752,879
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Issue date Apr 1, 1930
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F28 - HEAT EXCHANGE IN GENERAL
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1336999
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Patent number 1,336,999
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Issue date Apr 13, 1920
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F28 - HEAT EXCHANGE IN GENERAL
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1314048
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Patent number 1,314,048
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Issue date Aug 26, 1919
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F28 - HEAT EXCHANGE IN GENERAL
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1256998
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Patent number 1,256,998
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Issue date Feb 19, 1918
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F28 - HEAT EXCHANGE IN GENERAL
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1167088
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Patent number 1,167,088
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Issue date Jan 4, 1916
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F28 - HEAT EXCHANGE IN GENERAL
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817692
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Patent number 817,692
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Issue date Apr 10, 1906
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F28 - HEAT EXCHANGE IN GENERAL