Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5350152 | Displacement controlled hydraulic proportional valve | John J. Krone | 1994-09-27 |
| 5316044 | Hydraulic control valve having a centering spring device | John F. Szentes, Daniel E. Zimmermann, David C. Mack | 1994-05-31 |