Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5142225 | Apparatus for measuring small displacements by using barberpole sensors producing a cyclical voltage having a mark/space ratio indicative of position | Guenter Gerlach, Erich Zabler, Georg Riedel | 1992-08-25 |