Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4480662 | Hydraulic system valve | — | 1984-11-06 |
| 4430924 | Petroleum pumping unit | Richard P. Dunn | 1984-02-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4480662 | Hydraulic system valve | — | 1984-11-06 |
| 4430924 | Petroleum pumping unit | Richard P. Dunn | 1984-02-14 |