Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368452 | Double diaphragm pump having two-stage air valve actuator | Harold D. Johnson, Daniel J. Kvinge, Richard D. Zarneke | 1994-11-29 |
| 5337791 | Dynamic surge suppressor for fluid flow lines | Daniel J. Kvinge | 1994-08-16 |