Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304539 | Barbecue spit | — | 1989-11-14 |
| 4863515 | Tool steel | William C. Roberts | 1989-09-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304539 | Barbecue spit | — | 1989-11-14 |
| 4863515 | Tool steel | William C. Roberts | 1989-09-05 |