Filter for tobacco smoke
United States Patent 2761798

Inventors:
Knudson, Harold W.
Publication Date:
09/04/1956
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Assignee:
H & V SPECIALTIES CO INC
LORILLARD CO P
Primary Class:
131/341
Other Classes:
55/524
International Classes:
A24D3/16; A24D3/00
Other References:
None