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Multi-row heat exchanger
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Patent number 5,954,125
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Issue date Sep 21, 1999
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Carrier Corporation
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Carlo Mantegazza
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Heat exchanger apparatus
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Patent number 4,434,843
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Issue date Mar 6, 1984
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International Environmental Manufacturing Co.
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Arthur L. Alford
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F28 - HEAT EXCHANGE IN GENERAL
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1988494
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Patent number 1,988,494
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Issue date Jan 22, 1935
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F28 - HEAT EXCHANGE IN GENERAL
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1931467
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Patent number 1,931,467
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Issue date Oct 17, 1933
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F28 - HEAT EXCHANGE IN GENERAL
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1821995
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Patent number 1,821,995
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Issue date Sep 8, 1931
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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840295
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Patent number 840,295
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Issue date Jan 1, 1907
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F28 - HEAT EXCHANGE IN GENERAL
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20016
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Patent number 20,016
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Issue date Apr 20, 1858
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR