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1605505
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Patent number 1,605,505
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Issue date Nov 2, 1926
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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1567682
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Patent number 1,567,682
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Issue date Dec 29, 1925
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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1505617
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Patent number 1,505,617
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Issue date Aug 19, 1924
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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1420133
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Patent number 1,420,133
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Issue date Jun 20, 1922
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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1334570
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Patent number 1,334,570
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Issue date Mar 23, 1920
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...