Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873518 | Pulse width discriminating circuit | — | 1989-10-10 |
| 4854709 | Arrangement for measuring the distance of a marking element on a displaceable body from a reference marking element | Thomas Theil | 1989-08-08 |
| 4818887 | Arrangement for the recognition of obstacles for motor vehicles | Walter Weishaupt | 1989-04-04 |
| 4807149 | Measuring arrangement with a plurality of measuring units | — | 1989-02-21 |