Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D405345 | Magnetic card reader and door knob assembly | Willi Hankel, Winfried Scholl | 1999-02-09 |
| D390769 | Magnetic card reader and door knob assembly | Willi Hankel, Winfried Scholl | 1998-02-17 |
| D382790 | Magnetic card reader and door knob assembly | Willi Hankel, Winfried Scholl | 1997-08-26 |