Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4377796 | Electric control device | Kurt A. Grunert, Charles R. Paton, John J. Henwood, Birch L. DeVault | 1983-03-22 |
| 4309683 | Electric control device | Kurt A. Grunert, Birch L. DeVault | 1982-01-05 |