Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834337 | Solenoid operated valve with solenoid wattage adjustment means | Harold L. Woodruff | 1989-05-30 |
| 4821774 | Solenoid operated valve with balancing means | — | 1989-04-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834337 | Solenoid operated valve with solenoid wattage adjustment means | Harold L. Woodruff | 1989-05-30 |
| 4821774 | Solenoid operated valve with balancing means | — | 1989-04-18 |