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3849258
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Patent number 3,849,258
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Issue date Nov 19, 1974
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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2343318
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Patent number 2,343,318
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Issue date Mar 7, 1944
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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1919098
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Patent number 1,919,098
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Issue date Jul 18, 1933
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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1758544
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Patent number 1,758,544
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Issue date May 13, 1930
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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1588629
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Patent number 1,588,629
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Issue date Jun 15, 1926
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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1510857
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Patent number 1,510,857
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Issue date Oct 7, 1924
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...