Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4603236 | Secretarial answering system with distributed processing | Louis W. Smith | 1986-07-29 |
| 4574165 | Secretarial answering system | Louis W. Smith | 1986-03-04 |
| 4567324 | Secretarial telephone station for use with a secretarial answering system | Louis W. Smith | 1986-01-28 |