US PATENT SUBCLASS 4 / 213
.~ Electric-motor pump

Current as of: June, 1999
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4 /   HD   BATHS, CLOSETS, SINKS, AND SPITTOONS

209 R  DF  VENTILATION {10}
213.~ Electric-motor pump

DEFINITION

Classification: 4/213

The air and gases are carried away by an air pump operated by an electric motor.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure, appropriate subclasses for electric motor structure.

318, Electricity: Motive Power Systems, appropriate subclasses, for electric motor control systems.