HIGH LOAD PIPELINE SUPPORTING STRUCTURE BUILT IN AN OPERATING MINING SHAFT,申请号PL19870266629-传众专利搜索

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发明名称	HIGH LOAD PIPELINE SUPPORTING STRUCTURE BUILT IN AN OPERATING MINING SHAFT
摘要
申请公布号	PL266629(A1)	申请公布日期	1988.06.09
申请号	PL19870266629	申请日期	1987.07.01
申请人		发明人
分类号	E21D;E21F17/02;F16L;(IPC1-7):E21D/;F16L/	主分类号	E21D
代理机构		代理人
主权项
地址

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