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发明名称
Dental instrument
摘要
申请公布号
US2519246(A)
申请公布日期
1950.08.15
申请号
US19480047972
申请日期
1948.09.07
申请人
HAAS ALFRED E
发明人
HAAS ALFRED E.
分类号
A61C5/12
主分类号
A61C5/12
代理机构
代理人
主权项
地址
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