(under subclass 9) Subject matter in which the electromagnetic operator is a solenoid and/or relay device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
19, for band scanning or selector circuit driven by a solenoid.
SEE OR SEARCH CLASS
310, Electrical Generator or Motor Structure,
14, 24+, 30+, and 34+ for solenoid motor structure, per se, and subclass 49 for step-by-step magnetic motor structure. 318, Electricity: Motive Power Systems, appropriate subclasses, especially
37, and 119+ for reciprocating or oscillating motor systems and subclasses 38 and 138 for linear movement electric motor systems.
361, Electricity: Electrical Systems and Devices,
139+, for electric circuits for relays and electromagnets.
