Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5793593 | Method and apparatus using a five-wire network for distribution of electrical power | Robert G. Reed | 1998-08-11 |
| 4639552 | Apparatus for converting a standard telephone to an unlisted number telephone | — | 1987-01-27 |