Corporate Assignee
Telephonic communications
Subscriber line or transmission line interface
Protective circuit
Corporate Assignee
active
No affiliations
Line power control circuit for pay station telephone
Pay station telephone call answer supervision apparatus
Pay station telephone call routing apparatus
Pay station telephone coin box apparatus
Pay station telephone interface
LandOfFree
Digital Telecommunications Systems, Inc. does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Digital Telecommunications Systems, Inc., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital Telecommunications Systems, Inc. will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-213969