Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859941 | Proximity selectro with integral magnet, pole-piece plate and pair of magnetic transducers | Barbara L. Gibson | 1989-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859941 | Proximity selectro with integral magnet, pole-piece plate and pair of magnetic transducers | Barbara L. Gibson | 1989-08-22 |