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发明名称
METHOD AND MEANS FOR CAUSING A BREAK IN A STRUCTURE
摘要
申请公布号
GB1526281(A)
申请公布日期
1978.09.27
申请号
GB19750039389
申请日期
1975.09.25
申请人
ASAKURA K
发明人
分类号
E01D19/06;E01C11/02;E01D24/00;E04G23/08;(IPC1-7):E04G23/08
主分类号
E01D19/06
代理机构
代理人
主权项
地址
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