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Nei-Chang Yu
| Nei-Chang Yu Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20110207070 | Orthodontic System - An orthodontic system includes a tap, a screw and a tool. A user can maneuver the tool to drive the tap and screw. The tap is used to make a hole in an alveolus bone. The screw is used for firm insertion in the alveolus bone through the hole made with the tap. | 08-25-2011 |