Title:
Tobacco smoke filter
United States Patent 3409020

Inventors:
Westbrook Jr., Claud Eric
Sidney, Osmalov Jerome
Noble, Thomson Richard
Publication Date:
11/05/1968
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Assignee:
PHILIP MORRIS INC
Primary Class:
131/332
Other Classes:
131/344, 131/342
International Classes:
A24D3/16; A24D3/00




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