Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009245 | Pressure regulator | David L. Kessler | 1991-04-23 |
| 4538458 | Temperature compensated gas meters | Daniel E. Bruce | 1985-09-03 |
| 4422324 | Four chamber direct drive gas meter | — | 1983-12-27 |