Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323444 | Emergency call system with call capacity/last chance routing feature | Douglas J. Ertz, Michael Jay Nelson | 1994-06-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323444 | Emergency call system with call capacity/last chance routing feature | Douglas J. Ertz, Michael Jay Nelson | 1994-06-21 |