US PATENT SUBCLASS 74 / 57
.~.~.~.~ Grooved

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}
55  DF  .~.~ Cam and slide {2}
56  DF  .~.~.~ Axial cam {1}
57.~.~.~.~ Grooved {2}
58  DF  .~.~.~.~.~> Multiple screw
59  DF  .~.~.~.~.~> Alternately rotated screw

DEFINITION

Classification: 74/57

(under subclass 56) Mechanisms, including a cam and slide, the cam being of the axial type and the cam surface being in the form of a groove in the cam surface.