US PATENT SUBCLASS 368 / 121
.~.~.~ Including time indicating means actuated by voltage or electrical charge

Current as of: June, 1999
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368 /   HD   HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES

89  DF  TIME INTERVAL {6}
107  DF  .~ Electrical or electromechanical {3}
113  DF  .~.~ Stop time type {5}
121.~.~.~ Including time indicating means actuated by voltage or electrical charge {2}
122  DF  .~.~.~.~> With null indicator having variable circuit element
123  DF  .~.~.~.~> With vacuum-tube voltmeter

DEFINITION

Classification: 368/121

Including time indicating means actuated by voltage or electrical charge:

(under subclass 113) Subject matter having indicating means, usually as the ultimate elapsed time indicator, responsive to a voltage or electrical charge representative of said elapsed time.

(1) Note. Examples of indicators of this subclass type are: conventional volmeters, ammeters, and ballistic galvanometers. These meters, in many cases, are calibrated in horological units instead of the electrical quantities to which they actually respond.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

1+, for miscellaneous signal discriminating circuits.