Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D267437 | Disposable ashtray | Francis K. Harvey, David L. Ingraham | 1982-12-28 |
| D266959 | Disposable ashtray | Francis K. Harvey, David L. Ingraham | 1982-11-16 |
| 4349036 | Disposable ashtray | Francis K. Harvey, David L. Ingraham | 1982-09-14 |