Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4243111 | Automatic shut-off valve for power tools | Robert A. Willoughby | 1981-01-06 |
| 4218853 | Energy absorbing keyhole slots | Robert A. Willoughby, John P. Law | 1980-08-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4243111 | Automatic shut-off valve for power tools | Robert A. Willoughby | 1981-01-06 |
| 4218853 | Energy absorbing keyhole slots | Robert A. Willoughby, John P. Law | 1980-08-26 |