Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954606 | Elevator system control responsive to hoistway access detection | Anthony Black, Nora E. LaFreniere | 2011-06-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954606 | Elevator system control responsive to hoistway access detection | Anthony Black, Nora E. LaFreniere | 2011-06-07 |