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Tobacco treatment process
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Patent number 6,131,584
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Issue date Oct 17, 2000
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Brown & Williamson Tobacco Corporation
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John H. Lauterbach
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A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
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Dye for coloring cigarette paper
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Patent number 5,094,253
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Issue date Mar 10, 1992
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Brown & Williamson Tobacco Corporation
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Frank K. St. Charles
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Cigarette
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Patent number 4,893,638
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Issue date Jan 16, 1990
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Brown & Williamson Tobacco Corporation
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John H. Lauterbach
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A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES