Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10125520 | Key and rotary cylinder lock with key | Detlef Sprenger | 2018-11-13 |
| 10054311 | Burner for burning a pulverulent fuel for a boiler having a plasma ignition torch | Hellmuth Brueggemann | 2018-08-21 |
| D825314 | Shaft of a key | Detlef Sprenger | 2018-08-14 |