Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6550585 | Hoistway intrusion detection | Wolfgang Schoppa | 2003-04-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6550585 | Hoistway intrusion detection | Wolfgang Schoppa | 2003-04-22 |