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Heat exchanger
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Patent number 4,800,955
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Issue date Jan 31, 1989
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MTU-Motoren und Turbinen-Union Munchen GmbH
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Klaus Hagemeister
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F28 - HEAT EXCHANGE IN GENERAL
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3447602
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Patent number 3,447,602
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Issue date Jun 3, 1969
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F24 - HEATING RANGES VENTILATING
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1094416
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Patent number 1,094,416
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Issue date Apr 28, 1914
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F28 - HEAT EXCHANGE IN GENERAL
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1071570
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Patent number 1,071,570
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Issue date Aug 26, 1913
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F28 - HEAT EXCHANGE IN GENERAL
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896805
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Patent number 896,805
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Issue date Aug 25, 1908
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F28 - HEAT EXCHANGE IN GENERAL
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600480
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Patent number 600,480
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Issue date Mar 8, 1898
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F28 - HEAT EXCHANGE IN GENERAL
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575207
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Patent number 575,207
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Issue date Jan 12, 1897
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F28 - HEAT EXCHANGE IN GENERAL
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398966
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Patent number 398,966
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Issue date Mar 5, 1889
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F28 - HEAT EXCHANGE IN GENERAL
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139908
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Patent number 139,908
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Issue date Jun 17, 1873
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F28 - HEAT EXCHANGE IN GENERAL
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39688
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Patent number 39,688
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Issue date Aug 25, 1863
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F28 - HEAT EXCHANGE IN GENERAL
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25296
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Patent number 25,296
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Issue date Aug 30, 1859
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F28 - HEAT EXCHANGE IN GENERAL