Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4690592 | Stabilizing attachment for boring head | — | 1987-09-01 |
| 4635456 | Device for shot-peening inside surface of U-bend region of heat exchanger tubing | Douglas G. Harman | 1987-01-13 |