| 5275386 |
Positioning device |
Ulrich Baum, Castor Fuhrmann |
1994-01-04 |
| 5158268 |
Positioning device |
Ulrich Baum, Castor Furhmann |
1992-10-27 |
| 4779845 |
Gas spring for motor vehicle with retaining drive for preventing piston rod return toward its operational, outermost position after accident |
Hans-Georg Bartesch, Volker Nickel, Manfred Muller, Herbert Freitag |
1988-10-25 |
| 4400600 |
Gas spring arrangement operating as an electrical connection |
Herbert Freitag |
1983-08-23 |
| 4383595 |
Gas spring having three different damping-rate stages |
— |
1983-05-17 |
| 4323224 |
Gas spring with means for impeding piston movement away from one terminal position |
Herbert Freitag |
1982-04-06 |
| 4316098 |
Gas spring arrangement operating as an electrical connection |
Herbert Freitag |
1982-02-16 |
| 4307875 |
Self-blocking gas spring released by external force |
Herbert Freitag |
1981-12-29 |
| 4281884 |
Electrically conductive pneumatic spring |
Herbert Freitag, Martin Muller, Willi Schafer |
1981-08-04 |
| RE30663 |
Electrically conductive pneumatic spring with door actuated switch means |
— |
1981-06-30 |
| 4263488 |
Pneumatic spring including an electric switch |
Herbert Freitag |
1981-04-21 |
| 4257580 |
Pneumatic spring |
— |
1981-03-24 |
| 4230309 |
Gas spring with automatic locking mechanism |
— |
1980-10-28 |