Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680455 | Digital signature generator /verifier/ recorder (DS-GVR) for analog transmissions | Ralph Linsker | 1997-10-21 |
| 5598473 | Digital signature generator/verifier/recorder (DS-GVR) for analog transmissions | Ralph Linsker | 1997-01-28 |