US PATENT SUBCLASS 74 / 168
.~.~.~.~ Multiple acting

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

111  DF  MECHANICAL MOVEMENTS (INTERMITTENT GRIP TYPE) {3}
144  DF  .~ Grip units and features {5}
162  DF  .~.~ Grip features {4}
167  DF  .~.~.~ Driving ratchet-bar or rack {1}
168.~.~.~.~ Multiple acting

DEFINITION

Classification: 74/168

(under subclass 167) Devices, in which a plurality of power imparting elements in the form of ratchet bars or racks actuate the driven member.