THREE-STAGE DECOMPRESSION SYSTEM FOR AUTOMATIC COLLECTION AND PLACING OF DRILLED-OUT ROCK,申请号SU19884396574-传众专利搜索

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发明名称	THREE-STAGE DECOMPRESSION SYSTEM FOR AUTOMATIC COLLECTION AND PLACING OF DRILLED-OUT ROCK
摘要
申请公布号	SU1543041(A1)	申请公布日期	1990.02.15
申请号	SU19884396574	申请日期	1988.03.21
申请人	PROIZV GEOLOGICHESKOE OB "TSENTRGEOLOGIYA"	发明人	SERGEEV SERGEJ N,SU;BALTER IGOR B,SU;PETROV IGOR P,SU;KHAUSTOV IGOR P,SU;VYAZNIKOV VLADIMIR S,SU
分类号	E21B25/00	主分类号	E21B25/00
代理机构		代理人
主权项
地址

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