DEVICE FOR MEASURING DISPLACEMENT OF ROOF,申请号SU19721836572-传众专利搜索

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发明名称	DEVICE FOR MEASURING DISPLACEMENT OF ROOF
摘要
申请公布号	SU588374(A1)	申请公布日期	1978.01.15
申请号	SU19721836572	申请日期	1972.10.09
申请人	VNII GORNOJ GEOMEKHANIKI MARKSHEJDERSKOGO DELA	发明人	LETOV SERGEJ A,SU;DVININ ANATOLIJ A,SU
分类号	E21C39/00;(IPC1-7):E21C39/00	主分类号	E21C39/00
代理机构		代理人
主权项
地址

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