US PATENT SUBCLASS 192 / 217.4
.~.~.~.~ With change-speed transmission

Current as of: June, 1999
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192 /   HD   CLUTCHES AND POWER-STOP CONTROL

215  DF  TRANSMISSION AND BRAKE {7}
217  DF  .~ Velocipede {1}
217.1  DF  .~.~ Back-pedaling brake (e.g., coaster brake) {2}
217.3  DF  .~.~.~ Wheel hub {3}
217.4.~.~.~.~ With change-speed transmission {1}
217.5  DF  .~.~.~.~.~> Plural sprockets

DEFINITION

Classification: 192/217.4

With change-speed transmission:

(under subclass 217.3) Subject matter wherein the device that transmits torque to the output can be shifted to drive the output at one of a plurality of speed ratios relative to the input.