Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4965833 | Voice enhancer system | Thomas McGregor, Ian Firth | 1990-10-23 |
| 4259819 | Method and apparatus for anchoring sheet material to a framework | — | 1981-04-07 |
| 4235059 | Joint | — | 1980-11-25 |