Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5598455 | Alarm and test system for a digital added main line | David C. Bliven, Philip B. Vail, Gerald L. Shimirak, Julian S. Mullaney | 1997-01-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5598455 | Alarm and test system for a digital added main line | David C. Bliven, Philip B. Vail, Gerald L. Shimirak, Julian S. Mullaney | 1997-01-28 |