Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4232095 | Filler metal in a welded assembly | Heinrich Zoller, Heinz Bichsel | 1980-11-04 |
| 4216016 | Filler metal for welding aluminum alloys | Heinrich Zoller, Heinz Bichsel | 1980-08-05 |