Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866380 | Method and apparatus for determining the distance between an electromagnetic sensor and a conductive rail | Juergen Meins, Gerhard Holzinger | 1989-09-12 |
| 4812757 | Method and device for accurately determining the distance of a magnetic sensor from a conductive reaction rail | Jürgen Meins | 1989-03-14 |