Soutènement souple pour galerie de mine,申请号FRD64439-传众专利搜索

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发明名称	Soutènement souple pour galerie de mine
摘要
申请公布号	FR64439(E)	申请公布日期	1955.11.10
申请号	FRD64439	申请日期	1953.06.30
申请人		发明人	ALLAIN PIERRE-LOUIS
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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