Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5311642 | Door closer with a detent for holding a door open and the detent therefor | Horst Tillmann, Thomas Hering, Thomas Warschewitz, Dieter Sichelschmidt, Bernd Winkler | 1994-05-17 |