Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368452 | Double diaphragm pump having two-stage air valve actuator | Harold D. Johnson, Daniel J. Kvinge, Steven Plager | 1994-11-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368452 | Double diaphragm pump having two-stage air valve actuator | Harold D. Johnson, Daniel J. Kvinge, Steven Plager | 1994-11-29 |