US PATENT SUBCLASS 433 / 127
.~.~.~.~ Means to releaseably grip tool

Current as of: June, 1999
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433 /   HD   DENTISTRY

25  DF  APPARATUS {20}
103  DF  .~ Having motor or means to transmit motion from motor to tool (e.g., "engine") {10}
114  DF  .~.~ Hand-held tool or handpiece {9}
126  DF  .~.~.~ Having means facilitating assembly or disassembly of tool or handpiece {1}
127.~.~.~.~ Means to releaseably grip tool {2}
128  DF  .~.~.~.~.~> Comprising locking means extending into groove or recess
129  DF  .~.~.~.~.~> Including axially movable collect to cam fingers

DEFINITION

Classification: 433/127

Means to releasably grip tool:

(under subclass 126) Apparatus including a chuck for releasably holding a work contacting and modifying means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

147, for a hand manipulatable tool having a removable tool element or bit.

SEE OR SEARCH CLASS

279, Chucks or Sockets, appropriate subclasses for tool chucks in general. See particularly the search notes under the class definition.

408, Cutting by Use of Rotating Axially Moving Tool,

239+, for drill chucks.