Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4310250 | Apparatus for monitoring for faults in translucent strip material | Klaus Ostertag | 1982-01-12 |
| 4310756 | Light grid arrangement using cyclically switched semiconductor light sources | Gunter Fetzer | 1982-01-12 |