Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642690 | Animal containment system | Frank A. Calabrese, Kenneth B. Shockey, Franklin O. Wisman | 1997-07-01 |
| 5608381 | Animal containment system | Frank A. Calabrese, Kenneth B. Shockey | 1997-03-04 |