Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5035301 | Elevator speed dictation system | — | 1991-07-30 |
| 4527662 | Elevator speed control | John C. Doane | 1985-07-09 |
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5035301 | Elevator speed dictation system | — | 1991-07-30 |
| 4527662 | Elevator speed control | John C. Doane | 1985-07-09 |