US PATENT SUBCLASS 74 / 515 E
.~.~ Elbow

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

469  DF  CONTROL LEVER AND LINKAGE SYSTEMS {8}
515 R  DF  .~ Knee operated {1}
515 E.~.~ Elbow

Unofficial Alpha Subclasses: R E

DEFINITION

Classification: 74/515

(under subclass 469) Systems operated by a knee controlled member.