US PATENT SUBCLASS 340 / 660
.~.~.~ Voltage

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
657  DF  .~.~ Electrical characteristic {4}
660.~.~.~ Voltage {3}
661  DF  .~.~.~.~> Comparison
662  DF  .~.~.~.~> Overvoltage
663  DF  .~.~.~.~> Undervoltage

DEFINITION

Classification: 340/660

Voltage:

(under subclass 657) Subject matter where the monitored characteristic is the electrical potential at a point in a current carrying circuit.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing,

72.5, for a voltage probe in a specific environment; subclasses 76.11+ for voltage measurement absent a significant tangible environment, and particularly subclass 133 for a test with a nonquantitative indication.