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经营范围
发明名称
Surgical speculum
摘要
申请公布号
US2300040(A)
申请公布日期
1942.10.27
申请号
US19400338191
申请日期
1940.05.31
申请人
BETTS FRANK A
发明人
BETTS FRANK A.
分类号
A61B1/32
主分类号
A61B1/32
代理机构
代理人
主权项
地址
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