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Heat exchanger
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Patent number 6,302,191
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Issue date Oct 16, 2001
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Alstom UK Limited
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Mark Frederick Wickham
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 5,915,465
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Issue date Jun 29, 1999
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Deutsche Babcock-Borsig Aktiengesellschaft
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Michael Fix
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F28 - HEAT EXCHANGE IN GENERAL
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3485294
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Patent number 3,485,294
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Issue date Dec 23, 1969
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F24 - HEATING RANGES VENTILATING
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2729432
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Patent number 2,729,432
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Issue date Jan 3, 1956
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F28 - HEAT EXCHANGE IN GENERAL
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2729433
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Patent number 2,729,433
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Issue date Jan 3, 1956
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F28 - HEAT EXCHANGE IN GENERAL
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1751623
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Patent number 1,751,623
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Issue date Mar 25, 1930
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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438297
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Patent number 438,297
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Issue date Oct 14, 1890
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F24 - HEATING RANGES VENTILATING
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151237
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Patent number 151,237
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Issue date May 26, 1874
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F24 - HEATING RANGES VENTILATING
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98873
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Patent number 98,873
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Issue date Jan 18, 1870
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F24 - HEATING RANGES VENTILATING
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47833
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Patent number 47,833
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Issue date May 23, 1865
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F24 - HEATING RANGES VENTILATING
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45732
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Patent number 45,732
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Issue date Jan 3, 1865
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F24 - HEATING RANGES VENTILATING
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42459
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Patent number 42,459
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Issue date Apr 26, 1864
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F24 - HEATING RANGES VENTILATING