Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5596473 | Electrical switches with current protection interfaced with a remote station and a portable local unit | Richard A. Johnson, Joseph C. Engel, David M. Oravetz, James I. Wise | 1997-01-21 |