Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6336808 | Process for manipulating workpieces and a rotating hearth furnace for the same | — | 2002-01-08 |
| 6308547 | Shaft straightening and hardening machine and workpiece holder therefor | Karl Heess | 2001-10-30 |