ARCH SHIELD FOR MINING STEEP COAL SEAMS,申请号SU19884600698-传众专利搜索

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发明名称	ARCH SHIELD FOR MINING STEEP COAL SEAMS
摘要
申请公布号	SU1606708(A1)	申请公布日期	1990.11.15
申请号	SU19884600698	申请日期	1988.11.01
申请人	VNI PK UGOLNYJ I "KUZNIUI"	发明人	LIND VIKTOR V,SU;TUKHEL IVAN A,SU;TSULAUF YAKOV K,SU
分类号	E21D19/02;(IPC1-7):E21D19/02	主分类号	E21D19/02
代理机构		代理人
主权项
地址

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