US PATENT SUBCLASS 324 / 134
.~ With commutator or reversing or pulsating switch (e.g., D.C. watt-hour meter)

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

76.11  DF  MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46}
134.~ With commutator or reversing or pulsating switch (e.g., D.C. watt-hour meter) {1}
135  DF  .~.~> Oscillating

DEFINITION

Classification: 324/134

(under subclass 76) Subject matter having a commutator or having a reversing switch or having a pulsating switch.

(1) Note. This subclass includes, for example, DC watt hour meters.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers, appropriate subclasses for the structure of switches, per se.

310, Electric Generator or Motor Structure, appropriate subclasses, for motors having commutators.

361, Electricity: Electrical Systems and Devices,

139+, for relay systems, per se.