Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612823 | Vehicle parking brake mechanism | William L. De Leeuw | 1986-09-23 |
| 4492277 | Hydraulic energy drill bit | — | 1985-01-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612823 | Vehicle parking brake mechanism | William L. De Leeuw | 1986-09-23 |
| 4492277 | Hydraulic energy drill bit | — | 1985-01-08 |