Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4347660 | Quick change drill assembly machine | Michael R. Cannon, Dwayne E. Proff | 1982-09-07 |
| 4336730 | Fixture for resurfacing vehicle brake discs | William L. Kopecko, Joseph O. Duchac | 1982-06-29 |