Expansion device capable of blocking and/or sealing a valved pipe in a subhorizontal perforation, especially for strengthening injections,申请号IT19900022313-传众专利搜索

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发明名称	Expansion device capable of blocking and/or sealing a valved pipe in a subhorizontal perforation, especially for strengthening injections
摘要
申请公布号	IT1244463(B)	申请公布日期	1994.07.15
申请号	IT19900022313	申请日期	1990.12.06
申请人	SIREG SOCIETA' ITALIANA DI RICERCA ELEMENTI PER GEOTECNICA	发明人	BLANC EDOARDO;VAGO GIUSEPPE
分类号	E02D;(IPC1-7):E02D	主分类号	E02D
代理机构		代理人
主权项
地址

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