MINE LINING STRETCHER BAR AND METHOD OF MOUNTING IT IN PLACE,申请号PL19860259146-传众专利搜索

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发明名称	MINE LINING STRETCHER BAR AND METHOD OF MOUNTING IT IN PLACE
摘要
申请公布号	PL150145(B1)	申请公布日期	1990.04.30
申请号	PL19860259146	申请日期	1986.04.23
申请人		发明人
分类号	E21D11/28;(IPC1-7):E21D11/28	主分类号	E21D11/28
代理机构		代理人
主权项
地址

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