Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7480448 | Rapidly changeable photographic and stage backdrop lifting device | — | 2009-01-20 |
| 5017736 | Magnetically shielded door for use with shielded enclosures | Eric J. Yarger, Rex D. Yarger | 1991-05-21 |
| 4959504 | Magnetically and radio frequency shielded enclosure | Eric J. Yarger, Rex D. Yarger | 1990-09-25 |