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发明名称
Dental device
摘要
申请公布号
US2201190(A)
申请公布日期
1940.05.21
申请号
US19390248986
申请日期
1939.01.03
申请人
MASTRUD CONRAD D
发明人
MASTRUD CONRAD D.
分类号
A61C17/40
主分类号
A61C17/40
代理机构
代理人
主权项
地址
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