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Ground flare stack
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Patent number 4,140,471
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Issue date Feb 20, 1979
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National Airoil Burner Company, Inc.
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John F. Straitz
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Ground flare
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Patent number 4,065,248
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Issue date Dec 27, 1977
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National Airoil Burner Co., Inc.
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John F. Straitz
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Burner with noise suppressor
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Patent number 4,029,462
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Issue date Jun 14, 1977
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National Airoil Burner Co., Inc.
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Gordon M. Bitterlich
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Combination gas and oil burners
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Patent number 4,009,989
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Issue date Mar 1, 1977
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National Airoil Burner Company, Inc.
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Gordon M. Bitterlich
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Tall stack construction
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Patent number 3,960,064
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Issue date Jun 1, 1976
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National Airoil Burner Company, Inc.
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John F. Straitz
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E04 - BUILDING