US PATENT SUBCLASS 433 / 155
.~.~.~.~ Work accommodating slot or opening through surface (e.g., matrix clamp)

Current as of: June, 1999
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433 /   HD   DENTISTRY

25  DF  APPARATUS {20}
141  DF  .~ Hand manipulatable implement {10}
153  DF  .~.~ Having relatively movable work engaging surfaces {5}
154  DF  .~.~.~ Three or more relatively movable coacting surfaces {1}
155.~.~.~.~ Work accommodating slot or opening through surface (e.g., matrix clamp)

DEFINITION

Classification: 433/155

Work accommodating slot or opening through surface (e.g., matrix clamp):

(under subclass 154) Apparatus wherein at least one of the members has an aperture or slot through which a portion of the work may pass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

39, for matrix clamps wherein the matrix band is claimed.