UNRELIEVED ROOF SUPPORT SECTION,申请号SU19772467764-传众专利搜索

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发明名称	UNRELIEVED ROOF SUPPORT SECTION
摘要
申请公布号	SU621886(A1)	申请公布日期	1978.08.30
申请号	SU19772467764	申请日期	1977.03.29
申请人	INST GEOTEKHNICHESKOI MEKHANI	发明人	POTURAEV VALENTIN NIKITICH,SU;MISHCHENKO ANATOLIJ PAVLOVICH,SU;GURIN IVAN ALEKSEEVICH,SU;KHARCHENKO NIKOLAJ NIKOLAEVICH,SU;AGAPOV NIKOLAJ DMITRIEVICH,SU
分类号	E21D23/00;(IPC1-7):E21D23/00	主分类号	E21D23/00
代理机构		代理人
主权项
地址

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