US PATENT SUBCLASS 74 / 518
.~.~ Variable input leverage

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

469  DF  CONTROL LEVER AND LINKAGE SYSTEMS {8}
516  DF  .~ Variable output force {2}
518.~.~ Variable input leverage

DEFINITION

Classification: 74/518

(under subclass 516) Systems which have an additional device for varying the leverage of a control element so as to vary the input force.