Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE30903 | Computer controlled telephone answering system | Barry Yampol | 1982-04-13 |
| 4302632 | Digitally-controlled telephone answering switching system | Barry Yampol | 1981-11-24 |
| 4210783 | Digitally controlled telephone answering switching system | Barry Yampol | 1980-07-01 |
| 4200772 | Computer controlled telephone answering system | Barry Yampol | 1980-04-29 |