Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4774721 | Cable pair to telephone number verification system | Stephan Gift, Linus Rogers | 1988-09-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4774721 | Cable pair to telephone number verification system | Stephan Gift, Linus Rogers | 1988-09-27 |