Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357950 | Tobacco smoke filter having improved tar/carbon monoxide ratio | — | 1982-11-09 |
| 4355995 | Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same | — | 1982-10-26 |
| 4354889 | Ink reservoir element for use in a marking instrument, and method and apparatus for producing same | — | 1982-10-19 |