ARRANGEMENT FOR AIRING DEEP QUARRIES,申请号SU19843785585-传众专利搜索

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发明名称	ARRANGEMENT FOR AIRING DEEP QUARRIES
摘要
申请公布号	SU1232819(A1)	申请公布日期	1986.05.23
申请号	SU19843785585	申请日期	1984.08.30
申请人	INST GEOTEKHNICHESKOI MEKHANI	发明人	AKREEV VALENTIN D,SU;REVA NIKOLAJ P,SU;REZNICHENKO IGOR P,SU
分类号	E21F1/00;(IPC1-7):E21F1/00	主分类号	E21F1/00
代理机构		代理人
主权项
地址

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