Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633916 | Universal messaging service using single voice grade telephone line within a client/server architecture | Bruce Goldhagen, Frederick C. Kruesi, John L. Homan, Edwin M. Elrod | 1997-05-27 |