Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331165 | Ventilated cigarettes | David J. Farrar, Ralph W. Beck, Edward G. Preston | 1982-05-25 |
| 4325250 | Cigarette testing device | Reginald C. Bolt, John G. Dowding | 1982-04-20 |
| RE30865 | Manufacture of filter-tipped cigarettes | Clifford R. Marritt | 1982-02-16 |