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Wall fired duct heater
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Patent number 4,375,952
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Issue date Mar 8, 1983
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Coen Company, Inc.
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Ralph R. Vosper
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Parallel flow burner
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Patent number 4,303,386
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Issue date Dec 1, 1981
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Coen Company, Inc.
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Temple S. Voorheis
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Wall fired duct heater
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Patent number 4,286,945
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Issue date Sep 1, 1981
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Coen Company, Inc.
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Ralph R. Vosper
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Self contained compact burner
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Patent number 4,230,449
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Issue date Oct 28, 1980
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Coen Company
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Chester S. Binasik
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES