Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4238450 | Crucible loading-unloading system | Roger L. Bredeweg, Edward P. Povilaitis | 1980-12-09 |
| 4184826 | Closure and flash breaking apparatus for metallographic specimen molding device | Roy W. Johanson | 1980-01-22 |