Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4969345 | Method and apparatus for forming a collar around a hole in a sheet metal blank | Friedrich W. Thoolen | 1990-11-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4969345 | Method and apparatus for forming a collar around a hole in a sheet metal blank | Friedrich W. Thoolen | 1990-11-13 |