Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4649527 | Ultrasonic proximity switch | Alfred Forster, Heinz Walker | 1987-03-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4649527 | Ultrasonic proximity switch | Alfred Forster, Heinz Walker | 1987-03-10 |