METHOD OF REINFORCING ROCKS SPOSOB WZMACNIANIA SKAL,申请号PL19770200040-传众专利搜索

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发明名称	METHOD OF REINFORCING ROCKS SPOSOB WZMACNIANIA SKAL
摘要
申请公布号	PL108136(B1)	申请公布日期	1980.03.31
申请号	PL19770200040	申请日期	1977.08.03
申请人		发明人
分类号	E21D20/02;(IPC1-7):E21D21/00	主分类号	E21D20/02
代理机构		代理人
主权项
地址

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