Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843890 | Coriolis mass flow rate meter having an absolute frequency output | Michael J. Zolock | 1989-07-04 |
| 4817448 | Auto zero circuit for flow meter | James W. Hargarten | 1989-04-04 |