Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4581871 | Fastener and nosepiece for installing lath | William J. Blucher, Francis C. Peterson, Richard J. Ernst | 1986-04-15 |
| 4218795 | Drill bit with fastener-driving collar assembly | Richard J. Ernst | 1980-08-26 |