SEGMENT LINING FOR CROSS-CUT AND EXCAVATION,申请号PL19760195002-传众专利搜索

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发明名称	SEGMENT LINING FOR CROSS-CUT AND EXCAVATION
摘要
申请公布号	PL108843(B2)	申请公布日期	1980.04.30
申请号	PL19760195002	申请日期	1976.12.31
申请人		发明人
分类号	E21D11/00;(IPC1-7):E21D11/00	主分类号	E21D11/00
代理机构		代理人
主权项
地址

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