Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5202540 | Two-way ring communication system for elevator group control | Jurgen Schlotter | 1993-04-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5202540 | Two-way ring communication system for elevator group control | Jurgen Schlotter | 1993-04-13 |