Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867041 | Vortex amplifier driven actuator spool | — | 1989-09-19 |
| 4856338 | Technique for null balancing fluidic circuits | R. Michael Phillippi | 1989-08-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867041 | Vortex amplifier driven actuator spool | — | 1989-09-19 |
| 4856338 | Technique for null balancing fluidic circuits | R. Michael Phillippi | 1989-08-15 |