Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5070523 | Private automatic business exchange | George F. Hafer | 1991-12-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5070523 | Private automatic business exchange | George F. Hafer | 1991-12-03 |