Referenced by|
| US4082098 | 28 Oct 1976 | 4 Apr 1978 | Olin Corporation | Flavored cigarette | | US4112154 | 2 Sep 1977 | 5 Sep 1978 | Olin Corporation | Method for obtaining uniform porosity in printed inherently porous cigarette tipping papers | | US4433696 | 2 Oct 1981 | 28 Feb 1984 | Philip Morris Incorporated | Variable dilution filter | | US5044381 | 2 Apr 1990 | 3 Sep 1991 | | Closed cigarette filter | | USRE32221 | 2 Oct 1984 | 12 Aug 1986 | | Variable dilution filter |
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