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发明名称
INTRA-UTERINE CONTRACEPTIVE
摘要
申请公布号
GB1291704(A)
申请公布日期
1972.10.04
申请号
GB19680058969
申请日期
1968.12.11
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
DAVID WOLFERS
分类号
A61F6/14
主分类号
A61F6/14
代理机构
代理人
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地址
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