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发明名称
Cement restrictor
摘要
申请公布号
GB2362830(A)
申请公布日期
2001.12.05
申请号
GB20010006980
申请日期
2001.03.21
申请人
发明人
分类号
A61F2/00;A61F2/02;A61F2/30;A61F2/46;(IPC1-7):A61F2/30
主分类号
A61F2/00
代理机构
代理人
主权项
地址
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