Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820896 | Method and apparatus producing drawn copper wire from an electrical seam welder | Hanspeter Fankhauser | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820896 | Method and apparatus producing drawn copper wire from an electrical seam welder | Hanspeter Fankhauser | 1989-04-11 |