Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523308 | Telephone concentrator switch arrangement | John W. Bull, David B. DeVaney, Russell R. Davis, David L. Hinshaw, Haresh Jotwani +6 more | 1985-06-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523308 | Telephone concentrator switch arrangement | John W. Bull, David B. DeVaney, Russell R. Davis, David L. Hinshaw, Haresh Jotwani +6 more | 1985-06-11 |