Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4355403 | Teletypewriter line keyer with switching current regulator | Ronald E. Tollum, Julius A. Barthelme | 1982-10-19 |
| 4292465 | Distributed processing telex exchange | John F. Wilson, Edward D. Hoover, Philip K. Hammond, William A. Moshier, Jack L. Woodell +3 more | 1981-09-29 |
| 4291196 | Circuit for handling conversation data in a distributed processing telex exchange | John J. Bowerman, Marvin Perlman | 1981-09-22 |