SUSPENDED MECHANIZED ROOF SUPPORT IN PARTICULAR FOR SLOPED AND STEEP DEPOSITS,申请号PL19810233302-传众专利搜索

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发明名称	SUSPENDED MECHANIZED ROOF SUPPORT IN PARTICULAR FOR SLOPED AND STEEP DEPOSITS
摘要
申请公布号	PL134816(B1)	申请公布日期	1985.09.30
申请号	PL19810233302	申请日期	1981.10.01
申请人		发明人
分类号	E21D;E21D23/04;(IPC1-7):E21D23/04	主分类号	E21D
代理机构		代理人
主权项
地址

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