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发明名称
Dental apparatus
摘要
申请公布号
US1911386(A)
申请公布日期
1933.05.30
申请号
US19290407526
申请日期
1929.11.15
申请人
PIEPER OSCAR H
发明人
PIEPER OSCAR H.
分类号
A61C17/00
主分类号
A61C17/00
代理机构
代理人
主权项
地址
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