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发明名称
摘要
申请公布号	FR1194198(A)	申请公布日期	1959.11.06
申请号	FRD1194198	申请日期
申请人		发明人
分类号	E21D15/58;E21D15/582	主分类号	E21D15/58
代理机构		代理人
主权项
地址

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