Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956151 | Device for holding together and releasing conical joints | — | 1990-09-11 |
| 4238921 | Cooling device and method for cooling a heated travelling thread | Armin Wirz | 1980-12-16 |