Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5636476 | Device for opening and closing a window, a door, or the like | Dietger Frick, Werner Riedel | 1997-06-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5636476 | Device for opening and closing a window, a door, or the like | Dietger Frick, Werner Riedel | 1997-06-10 |