Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D330865 | Differential pressure indicator | George N. Peletis, Ronald E. MacPherson | 1992-11-10 |
| 4944367 | Injection lubricator with plural outlets | John A. Nelson | 1990-07-31 |
| 4893697 | Injection lubricator with pulse counter | — | 1990-01-16 |