Programmable data processing communications multiplexer
Record member advance system
Regulated pulsed current telegraph adapter
Shared maintenance terminal system
Signalling system and signal control equipment for multi-address
Station for power line access data system
Switching arrangement for monitoring polarity reversal on lines
Telematic reception terminal
Telematic system and method of controlling the same
Teleprinter
Teleprinter private branch exchange
Teletypewriter motor controlling
Transfer terminal with library phrase memory