Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5046085 | Interfacing system for an international-type pay-telephone | Charles T. Walneck, James H. Santee, Ronald J. Gaulke, Luis R. Ortez Perez, Alexis Torres Ramos | 1991-09-03 |