| 5257260 |
Expanding switching capability of a time division communication system by multiplexing groups of circuits into successions |
Charles J. Breidenstein, Klaus Gueldenpfennig |
1993-10-26 |
| 5239542 |
Time division multiplex switching system for interconnecting telephone circuits which operate in accordance with different signalling systems and call formats |
Charles J. Breidenstein, Klaus Gueldenpfennig |
1993-08-24 |
| 5175728 |
Flexible interface system for interfacing different complements of port circuits for a PCM telephony switching system |
Paul A. Buchiere, Elaine M. Kazimir |
1992-12-29 |
| 4527012 |
Communications switching system with modular switching communications peripheral and host computer |
James W. Delmege, Robert R. Laman, Christine Navarro |
1985-07-02 |
| D275279 |
High density component mounting back panel for electronic equipment |
Bruce G. Littlefield, Charles J. Breidenstein |
1984-08-28 |
| 4229816 |
Timing signal generation and distribution system for TDM telecommunications systems |
Charles J. Breidenstein, Bruce G. Littlefield |
1980-10-21 |