FOUNDATION OF FIELD DISTRIBUTION BOXES IN MINES,申请号PL19870267873-传众专利搜索

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发明名称	FOUNDATION OF FIELD DISTRIBUTION BOXES IN MINES
摘要
申请公布号	PL267873(A1)	申请公布日期	1989.04.03
申请号	PL19870267873	申请日期	1987.09.23
申请人		发明人
分类号	E04F;E21D;E21D9/00;E21F17/00;(IPC1-7):E21D/;E04F/	主分类号	E04F
代理机构		代理人
主权项
地址

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