METHOD OF DRIVING AND LINING ARRANGEMENT FOR MINE HEADINGS AT THEIR COROSSINGSS,申请号PL19860259609-传众专利搜索

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发明名称	METHOD OF DRIVING AND LINING ARRANGEMENT FOR MINE HEADINGS AT THEIR COROSSINGSS
摘要
申请公布号	PL150497(B1)	申请公布日期	1990.06.30
申请号	PL19860259609	申请日期	1986.05.19
申请人		发明人
分类号	E21D5/08;E21D9/14;(IPC1-7):E21D5/08	主分类号	E21D5/08
代理机构		代理人
主权项
地址

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