Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837800 | Cellular data telephone system and cellular data telephone therefor | Thomas A. Freeburg | 1989-06-06 |
DD
Donald F. Dautel
Overall (1989): #136,026 of 140,708Top 100%
1
Patents 1989