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发明名称
ULTRASONIC DENTAL FILE
摘要
An ultrasonic endodontic file that is resistant to failure from fracturing and breaking during operation by having an ideal length, which if increased or decreased by more than 1 mm, will result in increased file breakage.
申请公布号
AU3277184(A)
申请公布日期
1985.04.04
申请号
AU19840032771
申请日期
1984.09.06
申请人
DENTSPLY INTERNATIONAL INC.
发明人
RUSSELL D. GREEN
分类号
A61C1/07;A61B17/32;A61C3/03;A61C5/02
主分类号
A61C1/07
代理机构
代理人
主权项
地址
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