Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4467889 | Ladder-guided service elevator | Franz-Gunter Vogel | 1984-08-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4467889 | Ladder-guided service elevator | Franz-Gunter Vogel | 1984-08-28 |