US PATENT SUBCLASS 368 / 136
.~.~.~ With gravity actuation

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

124  DF  ESCAPEMENTS {1}
125  DF  .~ With oscillating or reciprocating means {3}
134  DF  .~.~ Pendulum type {3}
136.~.~.~ With gravity actuation

DEFINITION

Classification: 368/136

With gravity actuation:

(under subclass 134) Subject matter wherein impulse is given to the pendulum by falling weights.