Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845773 | Method and a system for remotely switching an electrically operated device by the use of signals generated by a telephone | — | 1989-07-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845773 | Method and a system for remotely switching an electrically operated device by the use of signals generated by a telephone | — | 1989-07-04 |