Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D771511 | Electronic bracelet for access control | Franz Duenser, Elmar Hartmann | 2016-11-15 |
| D750521 | Electronic bracelet for access control | Franz Duenser, Elmar Hartmann | 2016-03-01 |