US PATENT SUBCLASS 388 / 921
.~ Timer or time delay means

Current as of: June, 1999
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388 /   HD   ELECTRICITY: MOTOR CONTROL SYSTEMS

907  DF  SPECIFIC CONTROL CIRCUIT ELEMENT OR DEVICE {13}
921.~ Timer or time delay means

DEFINITION

Classification: 388/921

Timer or time delay means:

Art collection of systems which include a circuit element or subsystem whose function is to measure time intervals or to determine start or stop times for electrical signals.