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Heat exchanger
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Patent number 7,147,047
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Issue date Dec 12, 2006
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Behr GmbH & Co. KG
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Gerrit Wölk
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F28 - HEAT EXCHANGE IN GENERAL
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3298432
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Patent number 3,298,432
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Issue date Jan 17, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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3254708
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Patent number 3,254,708
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Issue date Jun 7, 1966
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F28 - HEAT EXCHANGE IN GENERAL
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3250325
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Patent number 3,250,325
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Issue date May 10, 1966
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F28 - HEAT EXCHANGE IN GENERAL
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1454107
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Patent number 1,454,107
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Issue date May 8, 1923
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F28 - HEAT EXCHANGE IN GENERAL