Adjustable-filter cigarette
United States Patent 3270750
Inventors:
Campbell, Robert A.
Publication Date:
09/06/1966
Assignee:
Campbell, Robert A.
Other Classes:
131/344, 493/50
International Classes:
A24D3/04; A24D3/00
US Patent References:
| 2695617 | Slip-on cigarette tip | | | |
| 2764513 | Cigarette with means for removing deleterious products of combustion | | | |
| 2854985 | Article of commerce | | | |
| 2890703 | Cigarette construction | | | |
| 2949116 | Adjustable cigarette filter | | | |
| 2958328 | Smoking articles | | | |