Tobacco – Smoke separator or treater – By adding constituent to smoke stream
Patent
1983-07-18
1985-08-20
Millin, V.
Tobacco
Smoke separator or treater
By adding constituent to smoke stream
131361, A24D 304
Patent
active
045357935
ABSTRACT:
A ventilated filter element comprising a fibrous filter element wherein a plurality of equiangularly spaced apart grooves extend in a parallel fashion along the longitudinal axis of the filter element from the mouth end of the element for a distance less than the total length of the element.
REFERENCES:
patent: 4232574 (1980-11-01), Hall
Brown & Williamson Tobacco Corporation
Lamb Charles G.
Millin V.
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