US PATENT SUBCLASS 433 / 7
.~ By device having means to apply outwardly directed force (e.g., expander)

Current as of: June, 1999
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433 /   HD   DENTISTRY

2  DF  ORTHODONTICS {9}
7.~ By device having means to apply outwardly directed force (e.g., expander)

DEFINITION

Classification: 433/7

By device having means to apply outwardly directed force (e.g., expander):

(under subclass 2) Subject matter wherein a tooth is positioned or aligned by a device which includes two force applying surfaces movable in divergent paths.