Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979208 | Method and apparatus for electronic payphone open switch interval management | Benny Pruden, Scott Hudis | 1990-12-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979208 | Method and apparatus for electronic payphone open switch interval management | Benny Pruden, Scott Hudis | 1990-12-18 |