US PATENT SUBCLASS 279 / 147
.~ Chuck key

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

142  DF  ACCESSORY OR COMPONENT {8}
147.~ Chuck key {3}
148  DF  .~.~> Safety feature; e.g., ejector, interlock
149  DF  .~.~> Key holding or attaching means
150  DF  .~.~> Nonseparable or built-in

DEFINITION

Classification: 279/147

Chuck key:

(under subclass 142) A device for manually and mechanically actuating the means for making the connection of the chuck into gripping contact with the object.

SEE OR SEARCH THIS CLASS, SUBCLASS:

134+, for a device having a separate chuck-actuating power source.