Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879531 | Inductive proximity switch oscillator having same activating range for ferrous and nonferrous metals | Dierk Brasse | 1989-11-07 |
| 4864156 | Proximity switch with noncontact effect | Dierk Brasse | 1989-09-05 |