Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321431 | Trunk circuit with single coupling transformer | Patrick R. Beirne, Raymond J. Whitbread | 1982-03-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321431 | Trunk circuit with single coupling transformer | Patrick R. Beirne, Raymond J. Whitbread | 1982-03-23 |