Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6170365 | Socket wrench extension | — | 2001-01-09 |
| 6119559 | Socket wrench extension | — | 2000-09-19 |
| 5083008 | Method for the manufacture of die-forged or die-stamped workpieces | — | 1992-01-21 |
| 4218828 | Device for measuring the tightening angle on a wrench | Johann-Peter Holting, Armin Rahn | 1980-08-26 |