Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811000 | Article enclosure with magnetic marker deactivating means | James B. Cantey | 1989-03-07 |
| 4797658 | Article surveillance marker capable of being deactivated by relieving the retained stress therein and method and system for deactivating the marker | — | 1989-01-10 |