Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4292474 | Electronic key telephone system with bi-directional serial data stream station control | William Levine | 1981-09-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4292474 | Electronic key telephone system with bi-directional serial data stream station control | William Levine | 1981-09-29 |