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Cigarettes and methods of making them
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Patent number 4,903,712
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Issue date Feb 27, 1990
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Tobacco Research and Development Institute Limited
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Mauritz L. Strydom
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A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
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Tobacco smoke filters
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Patent number 4,702,263
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Issue date Oct 27, 1987
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Tobacco Research and Development Institute Limited
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Mauritz L. Strydom
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A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
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Drying of tobacco products
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Patent number 4,336,660
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Issue date Jun 29, 1982
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Tobacco Research and Development Institute Ltd.
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Mauritz L. Strydom
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A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
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Cigarette rod condition determining
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Patent number 4,010,762
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Issue date Mar 8, 1977
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Tobacco Research and Development Institute Limited
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Mauritz Leon Strydom
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A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
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