US PATENT SUBCLASS 279 / 113
.~.~ Annular rack

Current as of: June, 1999
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279 /   HD   CHUCKS OR SOCKETS

110  DF  RADIALLY RECIPROCATING JAWS {9}
112  DF  .~ Transverse-screw actuated {1}
113.~.~ Annular rack

DEFINITION

Classification: 279/113

(under subclass 112) Devices comprising screws actuated by an annular rack engaging pinions on the screws.