Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850032 | Simulcast data communications system | — | 1989-07-18 |
| 4837800 | Cellular data telephone system and cellular data telephone therefor | Donald F. Dautel | 1989-06-06 |
TF
Thomas A. Freeburg
Overall (1989): #14,463 of 140,708Top 15%
2
Patents 1989