Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855545 | Pneumatic to electrical switch assembly | — | 1989-08-08 |
| 4838484 | Variable volume air conditioning system with velocity readout at the thermostat | — | 1989-06-13 |
| 4794847 | Rotary actuator | Larry G. Odegaard | 1989-01-03 |