Smoking article filters

Details Smoking article filters Smoking article filters

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

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