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Kinetically bonded tubes and tubesheet
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Patent number 4,527,623
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Issue date Jul 9, 1985
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Electric Power Research Institute, Inc.
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Richard H. Baird
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Heat exchanger
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Patent number 4,485,867
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Issue date Dec 4, 1984
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Ex-Cell-O Corporation
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William Melnyk
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F28 - HEAT EXCHANGE IN GENERAL
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1109384
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Patent number 1,109,384
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Issue date Sep 1, 1914
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F28 - HEAT EXCHANGE IN GENERAL