Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4614842 | Secretarial telephone station with distributed processing for use with a secretarial answering system | John Csapo | 1986-09-30 |
| 4612419 | Toll restriction circuit for an electronic telephone station | — | 1986-09-16 |
| 4603236 | Secretarial answering system with distributed processing | Janos I. Csapo | 1986-07-29 |
| 4585908 | Data entry and display control circuit | — | 1986-04-29 |
| 4574165 | Secretarial answering system | Janos I. Csapo | 1986-03-04 |
| 4567324 | Secretarial telephone station for use with a secretarial answering system | Janos I. Csapo | 1986-01-28 |
| 4536620 | Master unlock circuit for an electronic telephone | John G. Wagoner | 1985-08-20 |
| 4453040 | Telephone feature assignment circuit | Ann L. Wolf | 1984-06-05 |