Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858999 | Pressure control unit with locking device for dual circuit brake systems | Peter Volz, Ralf Harth | 1989-08-22 |
| 4840433 | Pressure control device, in particular for pressure-fluid-operable brake systems of automotive vehicles | Alfred Birkenbach, Ralf Harth | 1989-06-20 |
| 4828329 | Pressure regulator, in particular, for use with pressure fluid-operable brake systems of automotive vehicles | Alfred Birkenbach, Ralf Harth | 1989-05-09 |