Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416139 | Guiding a mandrel or punch for piercing or cold-extrusion | Heinrich Hesse, Siegfried Gross, Gerhard Radtke | 1983-11-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416139 | Guiding a mandrel or punch for piercing or cold-extrusion | Heinrich Hesse, Siegfried Gross, Gerhard Radtke | 1983-11-22 |