Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4335416 | Telephone protector module having flag indicator | Thomas A. Hollfelder | 1982-06-15 |
| 4334129 | Telephone digital office cutover system | John Gazzo, Thomas A. Hollfelder | 1982-06-08 |
| 4321650 | Telephone circuit sensitive station protector | Michael Fasano | 1982-03-23 |
| 4313039 | Telephone modular distributing frame | David Lionel Rawlings | 1982-01-26 |