Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5613389 | Locking device consisting of a key and a lock cylinder | — | 1997-03-25 |
| 4964288 | Locking device and reversible key | Peter Braun, Alexander Stefanescu | 1990-10-23 |
| 4856307 | Device for protecting motor-vehicle wheels against theft | — | 1989-08-15 |
| 4787225 | Key for a lock cylinder | Alexander Stefanescu | 1988-11-29 |
| 4778954 | Switching device to be operated by means of a cylinder lock | — | 1988-10-18 |