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Heat exchanger
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Patent number 5,518,066
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Issue date May 21, 1996
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Connell Limited Partnership
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Dennis G. Francis
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F28 - HEAT EXCHANGE IN GENERAL
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Modular tubular heat exchanger
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Patent number 4,592,416
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Issue date Jun 3, 1986
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The Air Preheater Company, Inc.
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Glenn D. Mattison
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F28 - HEAT EXCHANGE IN GENERAL
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Expansion guide
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Patent number 4,453,592
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Issue date Jun 12, 1984
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The Air Preheater Company, Inc.
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James D. Wightman
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F28 - HEAT EXCHANGE IN GENERAL
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2653799
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Patent number 2,653,799
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Issue date Sep 29, 1953
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F28 - HEAT EXCHANGE IN GENERAL
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2512748
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Patent number 2,512,748
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Issue date Jun 27, 1950
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F28 - HEAT EXCHANGE IN GENERAL
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1922173
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Patent number 1,922,173
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Issue date Aug 15, 1933
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F28 - HEAT EXCHANGE IN GENERAL
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1876401
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Patent number 1,876,401
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Issue date Sep 6, 1932
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F28 - HEAT EXCHANGE IN GENERAL
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1832637
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Patent number 1,832,637
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Issue date Nov 17, 1931
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F28 - HEAT EXCHANGE IN GENERAL
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1831454
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Patent number 1,831,454
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Issue date Nov 10, 1931
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F28 - HEAT EXCHANGE IN GENERAL
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1814010
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Patent number 1,814,010
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Issue date Jul 14, 1931
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F28 - HEAT EXCHANGE IN GENERAL
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1772805
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Patent number 1,772,805
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Issue date Aug 12, 1930
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F28 - HEAT EXCHANGE IN GENERAL
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1733999
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Patent number 1,733,999
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Issue date Oct 29, 1929
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F28 - HEAT EXCHANGE IN GENERAL
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1660163
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Patent number 1,660,163
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Issue date Feb 21, 1928
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F28 - HEAT EXCHANGE IN GENERAL
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1594199
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Patent number 1,594,199
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Issue date Jul 27, 1926
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F28 - HEAT EXCHANGE IN GENERAL
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319376
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Patent number 319,376
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Issue date Jun 2, 1885
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F28 - HEAT EXCHANGE IN GENERAL