US PATENT SUBCLASS 279 / 103
.~.~ Drill type

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

9.1  DF  SOCKET TYPE {27}
102  DF  .~ Friction grip {1}
103.~.~ Drill type

DEFINITION

Classification: 279/103

(under subclass 102) Devices of the conical shank or socket type.