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发明名称
Circular retractor
摘要
申请公布号
US1839726(A)
申请公布日期
1932.01.05
申请号
US19300472390
申请日期
1930.08.01
申请人
ARNOLD HUBERT R
发明人
ARNOLD HUBERT R.
分类号
A61B17/02
主分类号
A61B17/02
代理机构
代理人
主权项
地址
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