Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5992271 | Engineers wrench | Hans-Joachim Mehlau | 1999-11-30 |
| 5394419 | Circuit arrangement for limiting the power of the optical signal emitted by a laser diode | Klaus Panzer, Michael Stockmann | 1995-02-28 |
| 5343784 | Rotary tool | — | 1994-09-06 |
| 4898068 | Torque wrench | — | 1990-02-06 |
| 4770072 | Reversible ratchet wrench | — | 1988-09-13 |
| 4602538 | One-armed torque wrench | — | 1986-07-29 |
| 4589289 | Device for tightening a screw fastening, especially for tightening it beyond the yield point by controlling the angle of rotation | — | 1986-05-20 |