Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679933 | Control panels for elevators | Ralf Schmidt | 1997-10-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679933 | Control panels for elevators | Ralf Schmidt | 1997-10-21 |