US PATENT SUBCLASS 368 / 158
.~.~.~ Balance wheel type

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

155  DF  ELECTRICAL TIME BASE {2}
156  DF  .~ Solid state oscillating circuit type {1}
157  DF  .~.~ For reciprocating or oscillating element {2}
158.~.~.~ Balance wheel type

DEFINITION

Classification: 368/158

Balance wheel type:

(under subclass 157) Subject matter wherein the element is a wheel for regulating the beats of a timepiece.

SEE OR SEARCH THIS CLASS, SUBCLASS:

127+, for balance wheel-type escapements.

161+, for nonsolid-state oscillating circuit- type time bases with balance-wheel means.

169+, for timepiece oscillating or reciprocating means having balance-wheel means.