Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5345596 | Method and apparatus for establishing a communication link | Michael J. Buchenhorner, Mohammad M. Ghomeshi | 1994-09-06 |
| 5321735 | Method and apparatus for selective real time authorization and billing of calls in a public telepoint system | Robert L. Breeden | 1994-06-14 |