Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4435803 | Analog subscriber/trunk module with shared ringing source and ring-trip | Santanu Das, Ramon C. W. Chea, Jr. | 1984-03-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4435803 | Analog subscriber/trunk module with shared ringing source and ring-trip | Santanu Das, Ramon C. W. Chea, Jr. | 1984-03-06 |