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发明名称
Electric motor-driven pump arrangement for vacuum extraction apparatus for child-birth
摘要
申请公布号
US3112749(A)
申请公布日期
1963.12.03
申请号
US19610118798
申请日期
1961.06.22
申请人
KURT SOKOL
发明人
SOKOL KURT
分类号
A61B17/44
主分类号
A61B17/44
代理机构
代理人
主权项
地址
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