Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808916 | Power supply magnetic shunt for transmission line sensor module | — | 1989-02-28 |
| 4795973 | Line mounted apparatus for measuring line potential | John R. Montgomery | 1989-01-03 |
| 4796027 | Apparatus for data transmission from multiple sources on a single channel | — | 1989-01-03 |