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Heat exchanger
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Patent number 4,660,628
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Issue date Apr 28, 1987
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Stord Bartz A/S
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Per Solberg
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F28 - HEAT EXCHANGE IN GENERAL
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Rendering dryer
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Patent number 4,353,413
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Issue date Oct 12, 1982
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Chemetron Process Equipment, Inc.
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William M. Allen
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F26 - DRYING
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Multiflow rotary heat exchanger element
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Patent number 4,074,751
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Issue date Feb 21, 1978
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Unice Machine Company
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Joseph Christophe Victor Ducasse
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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3820597
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Patent number 3,820,597
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Issue date Jun 28, 1974
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3650319
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Patent number 3,650,319
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Issue date Mar 21, 1972
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F28 - HEAT EXCHANGE IN GENERAL
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3612171
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Patent number 3,612,171
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Issue date Oct 12, 1971
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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3596712
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Patent number 3,596,712
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Issue date Aug 3, 1971
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F28 - HEAT EXCHANGE IN GENERAL
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3313341
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Patent number 3,313,341
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Issue date Apr 11, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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2982522
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Patent number 2,982,522
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Issue date May 2, 1961
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C03 - GLASS MINERAL OR SLAG WOOL
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1971557
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Patent number 1,971,557
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Issue date Aug 28, 1934
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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1748320
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Patent number 1,748,320
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Issue date Feb 25, 1930
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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1746497
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Patent number 1,746,497
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Issue date Feb 11, 1930
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1689189
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Patent number 1,689,189
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Issue date Oct 30, 1928
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F28 - HEAT EXCHANGE IN GENERAL
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1667944
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Patent number 1,667,944
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Issue date May 1, 1928
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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1303864
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Patent number 1,303,864
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Issue date May 20, 1919
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1166139
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Patent number 1,166,139
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Issue date Dec 28, 1915
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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888680
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Patent number 888,680
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Issue date May 26, 1908
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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881128
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Patent number 881,128
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Issue date Mar 10, 1908
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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878997
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Patent number 878,997
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Issue date Feb 11, 1908
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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781382
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Patent number 781,382
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Issue date Jan 31, 1905
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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758045
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Patent number 758,045
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Issue date Apr 26, 1904
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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712345
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Patent number 712,345
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Issue date Oct 28, 1902
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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550368
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Patent number 550,368
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Issue date Nov 26, 1895
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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328696
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Patent number 328,696
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Issue date Oct 20, 1885
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F28 - HEAT EXCHANGE IN GENERAL
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176551
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Patent number 176,551
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Issue date Apr 25, 1876
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F28 - HEAT EXCHANGE IN GENERAL
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68058
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Patent number 68,058
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Issue date Aug 27, 1867
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F28 - HEAT EXCHANGE IN GENERAL