Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885781 | Frequency-selective sound transducer | — | 1989-12-05 |
| 4848871 | Fiber optic sensor for detecting mechanicl quantities | Peter Deimel | 1989-07-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885781 | Frequency-selective sound transducer | — | 1989-12-05 |
| 4848871 | Fiber optic sensor for detecting mechanicl quantities | Peter Deimel | 1989-07-18 |