Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D326266 | Power transfer block for telephone systems or similar device | Helmuth Neuwirth, Michael Mattei | 1992-05-19 |
| 4581493 | Line condition reporting system | John Gazzo, Edward Chiodo, Thomas Mazz | 1986-04-08 |
| 4528422 | Transparent secondary information transmission system for an information transmission system | — | 1985-07-09 |
| 4493948 | Transparent secondary information transmission system for an information transmission system | John M. Sues | 1985-01-15 |
| D276333 | Telephone transfer relay unit | — | 1984-11-13 |