Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4452108 | Ratcheting pipe wrench | Lawrence F. Irwin | 1984-06-05 |
| 4335632 | Internal pipe wrench | Lawrence F. Irwin | 1982-06-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4452108 | Ratcheting pipe wrench | Lawrence F. Irwin | 1984-06-05 |
| 4335632 | Internal pipe wrench | Lawrence F. Irwin | 1982-06-22 |