US PATENT SUBCLASS 368 / 172
.~.~.~ By rack and pinion
Current as of:
June, 1999
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368 /
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HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES
168
DF
OSCILLATING OR RECIPROCATING MEANS
{2}
169
DF
.~ Balance wheel type {1}
170
DF
.~.~ With regulation {4}
172
.~.~.~ By rack and pinion
DEFINITION
Classification: 368/172
By rack and pinion:
(under subclass 170) Subject matter wherein the balance wheel is regulated by means which include a bar with teeth adapted to engage with the teeth of a cog wheel.