Dispositif d'assemblage cédant sous la pression des terrains, pour les segments profilés des boisages en acier pour galeries,申请号FRD1101129-传众专利搜索

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发明名称	Dispositif d'assemblage cédant sous la pression des terrains, pour les segments profilés des boisages en acier pour galeries
摘要
申请公布号	FR1101129(A)	申请公布日期	1955.09.28
申请号	FRD1101129	申请日期	1954.05.24
申请人	BERGBAUSTAHL G. M. B. H.	发明人
分类号	E21D11/22	主分类号	E21D11/22
代理机构		代理人
主权项
地址

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