Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827774 | Flow sensing device | — | 1989-05-09 |
| 4826597 | Filter assembly with removable sheet | Roydon B. Cooper | 1989-05-02 |
| 4823604 | Pressure transducer assembly | — | 1989-04-25 |
| 4813446 | Automatic pressurized reservoir bleed valve | Arkady Flikop | 1989-03-21 |