DEVICE FOR PULLING UP WALLS OR BUILDING SLABS OR TIGHT DEALS TOWARDS BOARDINGS AND FOR EXPANDING EXCAVATIONS,申请号PL19770200985-传众专利搜索

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发明名称	DEVICE FOR PULLING UP WALLS OR BUILDING SLABS OR TIGHT DEALS TOWARDS BOARDINGS AND FOR EXPANDING EXCAVATIONS
摘要
申请公布号	PL112742(B1)	申请公布日期	1980.10.31
申请号	PL19770200985	申请日期	1977.09.22
申请人		发明人
分类号	E02D9/02;(IPC1-7):E02D9/02	主分类号	E02D9/02
代理机构		代理人
主权项
地址

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