Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5065428 | Secure mode answering machine | Michael Mitchell | 1991-11-12 |
| 4593155 | Portable telephone ID code transfer system | — | 1986-06-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5065428 | Secure mode answering machine | Michael Mitchell | 1991-11-12 |
| 4593155 | Portable telephone ID code transfer system | — | 1986-06-03 |