Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882572 | Electronic range indicator for a motor vehicle | Raymond Lippmann | 1989-11-21 |
| 4797924 | Vehicle voice recognition method and apparatus | Darrel A. Dolph, Yu-Jih Liu | 1989-01-10 |