Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356963 | Flow adjustment mechanism for air distribution systems | Douglas F. Edwards | 1982-11-02 |
| 4331291 | Pneumatic control circuit for air distribution systems | — | 1982-05-25 |
| 4312475 | Flow adjustment mechanism for air distributor systems | Douglas F. Edwards, Ronald Zimmer | 1982-01-26 |