Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886953 | Electrode wire for a roller seam welding machine | — | 1989-12-12 |
| 4795295 | Rupturable can member as well as method and apparatus for its production | Paul Opprecht | 1989-01-03 |
| 4795875 | Contact wire for a roller seam welding machine | — | 1989-01-03 |