Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4996408 | Proximity switch for use in welding facilities | Hans Schumacher | 1991-02-26 |
| 4755637 | Proximity switch for detecting a piston position in a pressure cylinder | — | 1988-07-05 |