Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689265 | Device for measuring a level of material using microwaves | Johanngeorg Otto, Peter Gerst | 1997-11-18 |
| 5669488 | Push button switch with star wheel arrangement | — | 1997-09-23 |
| 5659321 | Radar distance measuring device | Johanngeorg Otto | 1997-08-19 |
| 5614911 | Radar-based method of level measurement | Johanngeorg Otto, Peter Gerst | 1997-03-25 |