Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354038 | Heat treatment of metal castings and in-furnace sand reclamation | — | 1994-10-11 |
| 5350160 | Method and apparatus for heat treating metal castings | Paul M. Crafton | 1994-09-27 |
| 5294094 | Method and apparatus for heat treating metal castings | Paul M. Crafton | 1994-03-15 |