4. Tobacco
  5. Smoke separator or treater
  6. Interior surface causes particular flow characteristic

Donald E. Laslie

Inventor

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Cigarette and filter with cellulosic flavor addition

Tobacco – Smoke separator or treater – By adding constituent to smoke stream
Reexamination Certificate

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Concentric smoking filter having cellulose acetate tow periphery

Tobacco – Smoke separator or treater – Interior surface causes particular flow characteristic
Patent

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Concentric smoking filter having cellulose acetate tow periphery

Tobacco – Smoke separator or treater – Interior surface causes particular flow characteristic
Patent

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Filter materials

Tobacco – Smoke separator or treater
Patent

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Profile ID: LFUS-PAI-P-549818

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