METHOD OF BREAKING-OUT ROCK IN BLOCKS,申请号SU19874189541-传众专利搜索

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发明名称	METHOD OF BREAKING-OUT ROCK IN BLOCKS
摘要
申请公布号	SU1476127(A1)	申请公布日期	1989.04.30
申请号	SU19874189541	申请日期	1987.02.02
申请人	LE GORNYJ I IM.G.V.PLEKHANOVA	发明人	KORSAKOV PETR F,SU
分类号	E21C37/00	主分类号	E21C37/00
代理机构		代理人
主权项
地址

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