Dentistry – Apparatus – Work support
Reexamination Certificate
2006-10-17
2006-10-17
Lewis, Ralph A. (Department: 3732)
Dentistry
Apparatus
Work support
C433S060000, C433S213000, C434S263000
Reexamination Certificate
active
07121826
ABSTRACT:
An orthodontic model has a single block body made of catalyzing acrylic resin with a pair of prism boxes inversely positioned and interconnected by a pair of posterior walls with a window, the prism boxes have covers of the same shape and are provided with perimetral depressions for fitting to the boxes and to reach a welding of edges of each dental arch or the model, and a method of its production is proposed.
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Donahoe Casey
Lewis Ralph A.
Striker Michael J.
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