US PATENT SUBCLASS 368 / 155
ELECTRICAL TIME BASE

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

155ELECTRICAL TIME BASE {2}
156  DF  .~> Solid state oscillating circuit type {1}
160  DF  .~> For reciprocating or oscillating element {3}

DEFINITION

Classification: 368/155

ELECTRICAL TIME BASE:

(under the class definition) Subject matter including electrically-powered means for providing impulses or pulses to the beat measuring time indicator control portion of a timepiece.

SEE OR SEARCH THIS CLASS, SUBCLASS:

139+, for timepiece mechanical time bases.

SEE OR SEARCH CLASS

318, Electricity: Motive Power Systems,

119+, for electrical reciprocating or oscillating motors.

364, Electrical Computers and Data Processing Systems,

569, for electronic computational time measuring. 708, Electrical Computers: Arithmetic Processing and Calculating,

111+, for computational digital watches.