US PATENT SUBCLASS 433 / 209
.~.~.~.~ Having dovetail, "T", pinhead, or bulbous protrusion extending into congruent recess in facing

Current as of: June, 1999
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433 /   HD   DENTISTRY

167  DF  PROSTHODONTICS {13}
202.1  DF  .~ Tooth construction {5}
206  DF  .~.~ Metallic tooth, tooth portion, or attachment {3}
208  DF  .~.~.~ Metallic backing {2}
209.~.~.~.~ Having dovetail, "T", pinhead, or bulbous protrusion extending into congruent recess in facing

DEFINITION

Classification: 433/209

Having dovetail, "t", pinhead or bulbous protrusion extending in congruent recess in facing:

(under subclass 208) Subject matter wherein the backing is provided with a protruding portion provided with an enlargement at its distal end having a cross sectional shape of a dovetail, "T", pinhead, or bulb, the enlargement being placed in a correspondingly shaped recess in the tooth facing to unite the tooth facing and backing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

181, for similarly shaped protrusions carried by dentures to secure the denture in the mouth.

SEE OR SEARCH CLASS

403, Joints and Connections,

381, for corresponding connections between members other than teeth.