US PATENT SUBCLASS 74 / 31
.~.~.~ Shiftable pinion

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

*  DD  MECHANICAL MOVEMENTS {15}
25  DF  .~ Rotary to or from reciprocating or oscillating {20}
29  DF  .~.~ Rack and pinion type {5}
31.~.~.~ Shiftable pinion

DEFINITION

Classification: 74/31

(under subclass 29) Mechanisms, in which the pinion moves in and out of engagement with the rack.