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Recess filter and smokeable article containing a recess filter

Tobacco – Smoke separator or treater – Plural diverse elements
Reexamination Certificate

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Reduced gas phase cigarette

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

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Reduced ignition propensity smoking articles

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

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Reduction of carbon monoxide and nitric oxide in smoking...

Tobacco – Smoke separator or treater – By chemical reaction – e.g. – ion-exchange – chelating,...
Reexamination Certificate

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Relating to smoking articles

Tobacco – Smoke separator or treater – Plural diverse elements
Patent

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Removal of nicotine from tobacco smoke

Tobacco – Smoke separator or treater – By chemical reaction – e.g. – ion-exchange – chelating,...
Patent

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Removal of noxious oxidants and carcinogenic volatile nitrosocom

Tobacco – Smoke separator or treater
Patent

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Rod of smoking material and cigarettes made therefrom

Tobacco – Smoke separator or treater
Patent

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Rod-like smoking article with secondary air channels and apparat

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

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