Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5181236 | Automatic call returning method for call distributor with message record capability | Jerry M. Hilsenbeck, James G. Brown, Roger Sumner, Andre C. Zazzera, Dana A. Bailey | 1993-01-19 |