Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5161392 | Circular piece of jewelry comprising an outer band which rotates and process for manufacture | Bruno Wiriath | 1992-11-10 |
| 4238637 | Coreless induction furnace | Roald Bingen, Jean Cordier | 1980-12-09 |