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申请公布号
GB2089883(B)
申请公布日期
1984.08.22
申请号
GB19810033000
申请日期
1981.11.02
申请人
WELTON DEREK
发明人
分类号
E05B19/04;E05B19/10;(IPC1-7):E05B19/04
主分类号
E05B19/04
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