METHOD OF HOLDING IN PLACE STEENINGS OF WIDE-SPAN EARTH CUTS BY STRUTTING AND APPARATUS THEREFOR,申请号PL19840246639-传众专利搜索

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发明名称	METHOD OF HOLDING IN PLACE STEENINGS OF WIDE-SPAN EARTH CUTS BY STRUTTING AND APPARATUS THEREFOR
摘要
申请公布号	PL145650(B1)	申请公布日期	1988.10.31
申请号	PL19840246639	申请日期	1984.03.13
申请人		发明人
分类号	E02D;E02D17/04;(IPC1-7):E02D17/04	主分类号	E02D
代理机构		代理人
主权项
地址

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