US PATENT SUBCLASS 74 / 89.17
.~.~.~ With rack

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

*  DD  MECHANICAL MOVEMENTS {15}
89  DF  .~ Reciprocating or oscillating to or from alternating rotary {6}
89.16  DF  .~.~ Including spur gear {1}
89.17.~.~.~ With rack {1}
89.18  DF  .~.~.~.~> Curvilinear rack {1}

DEFINITION

Classification: 74/89.17

(under subclass 89.16) Mechanical movement including a straight or curved member having a series of teeth or recesses to mesh with a gear, such series having determinate effective length.