Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5313463 | ISDN credit checking | Angela R. Gore, Barbara Joanne Kittredge, Pamela J. Lauber | 1994-05-17 |
| 5287403 | Method and apparatus for processing telephone calls charged to credit cards | Jean Atkins, Richard Harris, David C. McChristian | 1994-02-15 |