Multiplex communications
Pathfinding or routing
Through a circuit switch
Inventor
active
Answer supervision system
Dial pulse delay circuit
Electronic telephone with feature access and speed dialing inclu
Electronic telephones with cooperative interaction between a mas
End mark controlled switching system and method
No associations
LandOfFree
William A. Fechalos does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with William A. Fechalos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and William A. Fechalos will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-592399