US PATENT SUBCLASS 433 / 128
.~.~.~.~.~ Comprising locking means extending into groove or recess

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  DF  .~.~.~.~ Means to releaseably grip tool {2}
128.~.~.~.~.~ Comprising locking means extending into groove or recess

DEFINITION

Classification: 433/128

Comprising locking means extending into groove or recess:

(under subclass 127) Apparatus wherein the chuck includes a movable member adapted to engage an indentation formed in the work contacting and modifying means to retain the work contacting and modifying means in the chuck.

SEE OR SEARCH CLASS

279, Chucks or Sockets,

76+, for nondental tool chucks of similar structure.