Tobacco-smoke filters
United States Patent 3353544
US Patent References:
Fibrous tobacco smoke filter containing finely divided solids
- - 2940456
Smoke filter and smoking devices formed therewith
- - 3217715
Cigarette filters
- - 3320961
Fibrous tobacco smoke filter containing finely divided solids
- - 2940456
Smoke filter and smoking devices formed therewith
- - 3217715
Cigarette filters
- - 3320961
Inventors:
Brian, Fordyce William
George, Horsewell Henry
George, Horsewell Henry
Publication Date:
11/21/1967
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Export Citation:
Assignee:
BROWN & WILLIAMSON TOBACCO
Primary Class:
Other Classes:
131/343
International Classes:
A24D3/02; A24D3/16; A24D3/00
Foreign References:
| CH287549A |