Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4458741 | Method of aspiration casting | Roy D. Lewis, H. Joseph Klein, William C. Hord, James C. Ailor | 1984-07-10 |
| 4417617 | Apparatus for vacuum casting of rods | Roy D. Lewis, H. Joseph Klein, William C. Hord, James C. Ailor | 1983-11-29 |