Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5188527 | Method of and system for cleaning the surface of furnace rollers of a roller hearth furnace | — | 1993-02-23 |
| 4579523 | Method of operating a controlled atmosphere furnace | Gunter Stemmer | 1986-04-01 |