Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324009 | Apparatus for surface hardening of refractory metal workpieces | — | 1994-06-28 |
| 5316594 | Process for surface hardening of refractory metal workpieces | — | 1994-05-31 |
| 5303904 | Method and apparatus for controlling heat transfer between a container and workpieces | — | 1994-04-19 |