Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351033 | Semi-hard magnetic elements and method of making same | Nen-Chin Liu, Robert C. O'Handley, Richard L. Copeland | 1994-09-27 |
| 5313192 | Deactivatable/reactivatable magnetic marker having a step change in magnetic flux | Jiro Yamasaki | 1994-05-17 |