Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4446335 | Telephone signal recording methods and apparatus | Charles Lee | 1984-05-01 |
| 4287512 | Magnetic locking methods and apparatus | — | 1981-09-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4446335 | Telephone signal recording methods and apparatus | Charles Lee | 1984-05-01 |
| 4287512 | Magnetic locking methods and apparatus | — | 1981-09-01 |