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Plate-type heat exchanger
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Patent number 4,858,685
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Issue date Aug 22, 1989
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Energigazdalkodasi Intezet
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Laszlo Szucs
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F28 - HEAT EXCHANGE IN GENERAL
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Plate heat exchanger
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Patent number 4,361,184
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Issue date Nov 30, 1982
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Cark Johan Lockmans Ingenjorsbyra AB
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Folke Bengtsson
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F28 - HEAT EXCHANGE IN GENERAL
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Heat transfer pack
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Patent number 4,263,967
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Issue date Apr 28, 1981
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Hayes Timber Pty. Limited, et al.
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John L. G. McNab
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger construction
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Patent number 4,253,520
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Issue date Mar 3, 1981
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The Garrett Corporation
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Johan A. Friedericy
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F28 - HEAT EXCHANGE IN GENERAL
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3828851
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Patent number 3,828,851
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Issue date Aug 13, 1974
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F28 - HEAT EXCHANGE IN GENERAL
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3610332
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Patent number 3,610,332
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Issue date Oct 5, 1971
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F28 - HEAT EXCHANGE IN GENERAL
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3593783
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Patent number 3,593,783
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Issue date Jul 20, 1971
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B60 - VEHICLES IN GENERAL
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3590917
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Patent number 3,590,917
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Issue date Jul 6, 1971
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F28 - HEAT EXCHANGE IN GENERAL
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3461956
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Patent number 3,461,956
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Issue date Aug 19, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3460611
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Patent number 3,460,611
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Issue date Aug 12, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3451474
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Patent number 3,451,474
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Issue date Jun 24, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3313344
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Patent number 3,313,344
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Issue date Apr 11, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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3212572
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Patent number 3,212,572
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Issue date Oct 19, 1965
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F28 - HEAT EXCHANGE IN GENERAL
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2869835
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Patent number 2,869,835
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Issue date Jan 20, 1959
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F28 - HEAT EXCHANGE IN GENERAL
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2828947
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Patent number 2,828,947
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Issue date Apr 1, 1958
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F24 - HEATING RANGES VENTILATING
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2620169
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Patent number 2,620,169
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Issue date Dec 2, 1952
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F28 - HEAT EXCHANGE IN GENERAL
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2576213
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Patent number 2,576,213
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Issue date Nov 27, 1951
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F28 - HEAT EXCHANGE IN GENERAL
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2571631
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Patent number 2,571,631
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Issue date Oct 16, 1951
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F28 - HEAT EXCHANGE IN GENERAL
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2368814
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Patent number 2,368,814
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Issue date Feb 6, 1945
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F28 - HEAT EXCHANGE IN GENERAL
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2321110
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Patent number 2,321,110
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Issue date Jun 8, 1943
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F28 - HEAT EXCHANGE IN GENERAL
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1751725
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Patent number 1,751,725
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Issue date Mar 25, 1930
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F28 - HEAT EXCHANGE IN GENERAL
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1727124
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Patent number 1,727,124
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Issue date Sep 3, 1929
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F28 - HEAT EXCHANGE IN GENERAL
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1635838
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Patent number 1,635,838
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Issue date Jul 12, 1927
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F28 - HEAT EXCHANGE IN GENERAL
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799621
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Patent number 799,621
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Issue date Sep 12, 1905
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F28 - HEAT EXCHANGE IN GENERAL