Filtering means

Details Filtering means Filtering means

1982-07-02

1984-11-13

Millin, V.

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

131338, 131339, 131361, A24D 304

Patent

active

044819595

ABSTRACT:
A tobacco smoke filter comprising an axially elongate filtering core 4, and a plugwrap 2 in surrounding engagement with the core and extending axially therebeyond to define a recess 6, the outer surface of the plugwrap providing at least one channel 8 extending longitudinally of the filter from an end 16 thereof.

REFERENCES:
patent: 3490461 (1970-01-01), Osmalou et al.
patent: 4256122 (1981-03-01), Johnson
patent: 4357950 (1982-11-01), Berger

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