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经营范围
发明名称
Grouting plug
摘要
申请公布号
US3243933(A)
申请公布日期
1966.04.05
申请号
US19620238604
申请日期
1962.11.19
申请人
V. K. GROUT PLUGS LIMITED
发明人
WILKIE RAYMOND E.;KELNER VICTOR
分类号
E04G23/02;F16L29/00
主分类号
E04G23/02
代理机构
代理人
主权项
地址
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