Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4900914 | Wide-angle viewing window with a plurality of optical structures | Horst Raff | 1990-02-13 |
| 4260217 | Panoramic periscope | Dieter Marx, Helmut Knutti | 1981-04-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4900914 | Wide-angle viewing window with a plurality of optical structures | Horst Raff | 1990-02-13 |
| 4260217 | Panoramic periscope | Dieter Marx, Helmut Knutti | 1981-04-07 |