Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5140590 | Telephone or data switching system with variable protocol inter-office communication | Ross M MacGillivray | 1992-08-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5140590 | Telephone or data switching system with variable protocol inter-office communication | Ross M MacGillivray | 1992-08-18 |