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Welded plate heat exchanger
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Patent number 5,638,899
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Issue date Jun 17, 1997
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Alfa-Laval Thermal AB
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Ralf Blomgren
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Plate heat exchanger
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Patent number 4,688,631
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Issue date Aug 25, 1987
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Barriquand Societe Anonyme
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Andre Peze
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F28 - HEAT EXCHANGE IN GENERAL
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3866674
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Patent number 3,866,674
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Issue date Feb 18, 1975
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F28 - HEAT EXCHANGE IN GENERAL
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3759322
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Patent number 3,759,322
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Issue date Sep 18, 1973
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F28 - HEAT EXCHANGE IN GENERAL
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3490523
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Patent number 3,490,523
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Issue date Jan 20, 1970
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F28 - HEAT EXCHANGE IN GENERAL
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3464488
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Patent number 3,464,488
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Issue date Sep 2, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3430694
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Patent number 3,430,694
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Issue date Mar 4, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3410340
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Patent number 3,410,340
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Issue date Nov 12, 1968
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G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
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3024002
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Patent number 3,024,002
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Issue date Mar 6, 1962
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2194733
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Patent number 2,194,733
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Issue date Mar 26, 1940
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F24 - HEATING RANGES VENTILATING
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1775103
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Patent number 1,775,103
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Issue date Sep 9, 1930
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F28 - HEAT EXCHANGE IN GENERAL
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1734962
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Patent number 1,734,962
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Issue date Nov 12, 1929
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F28 - HEAT EXCHANGE IN GENERAL