Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D305021 | Electronic control module enclosure | Richard J. Duell | 1989-12-12 |
| D304929 | Electronic control module enclosure | Richard J. Duell | 1989-12-05 |
| 4835715 | Outdoor ambient temperature determination | Robert W. Peitz, John M. Palmer, Daryl G. Erbs | 1989-05-30 |