Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5293150 | Circuit arrangement of an anti-theft alarm | Helmut Grickscheit | 1994-03-08 |
| 4830054 | Component assembly of several directional control valves adapted to be shifted electromagnetically independently of one another | Dieter Feichtiger, Wolfgang Biber, Elmar Freitag, Jean-Paul Corbier, Christian Dragoni | 1989-05-16 |
| 4821018 | Direction indicator and hazard warning device for motor vehicles | Raimund Leistenschneider, Egon Frey | 1989-04-11 |
| 4723078 | Arrangement for the automatic engagement of a hazard warning system | Egon Frey | 1988-02-02 |