Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5027853 | Limit switch replacement system and universal bracket | Ronald J. Walko, Thomas Kallay, Kevin Kallay, Robert E. Holden | 1991-07-02 |
| 4920305 | Auto calibrating electro hydraulic servo driver | Richard E. Benson, Robert S. Rand, Scott M. Shaw, Joel W. Spafford, Ronald J. Walko | 1990-04-24 |