Detecting coal mine rock fall danger - involves face coal movement and convergence of seam floor and roof measuring,申请号DE19803043510-传众专利搜索

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发明名称	Detecting coal mine rock fall danger - involves face coal movement and convergence of seam floor and roof measuring
摘要
申请公布号	DE3043510(A1)	申请公布日期	1982.06.03
申请号	DE19803043510	申请日期	1980.11.18
申请人	BATTELLE-INSTITUT E.V.	发明人	SCHAEPERMEIER,EGBERT,DR.
分类号	E21F17/00;(IPC1-7):21F17/00	主分类号	E21F17/00
代理机构		代理人
主权项
地址

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