Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4591671 | Telephone having built-in test capability for use in key telephone system | Serge Faublas | 1986-05-27 |
| 4570035 | Programmable key telephone system | Serge Faublas, Peter F. Stevens | 1986-02-11 |
| 4554413 | Key telephone system | Serge Faublas, Peter F. Stevens | 1985-11-19 |