FLEXICODE
ELECTRONIC REMOTE AND SUPERVISORY CODE CONTROL PROGRAMMERS, ESPECIALLY DESIGNED FOR TRANSMITTING CONTROL AND INDICATION FUNCTIONS SUCH AS SIGNAL INDICATIONS, TRACK SWITCH POSITIONS, AND TRAIN SPEED COMMANDS IN RAILROAD TRAFFIC CONTROL SYSTEMS, RAILROAD INTERLOCKING REMOTE CONTROL SYSTEMS, AND RAILROAD AUTOMATION SYSTEMS AND FOR TRANSMITTING PUMP AND VALVE CONTROL FUNCTIONS AND PRODUCT FLOW DATA IN SUPERVISORY CONTROL SYSTEMS FOR PIPELINE AND OTHER PRODUCT DISTRIBUTION SYSTEMS
Expired · July 14, 1969 · 72332543 ·