Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888863 | Method and apparatus for producing turbine blade roots | Ian Wilson | 1989-12-26 |
| 4832540 | Reconditioned milling tool and method of making same | William E. Kiger | 1989-05-23 |