étayage des galeries de mines,申请号FR19630941645-传众专利搜索

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发明名称	étayage des galeries de mines
摘要
申请公布号	FR1363065(A)	申请公布日期	1964.06.05
申请号	FR19630941645	申请日期	1963.07.16
申请人	BERGBAUSTAHL G.M.B.H. & CO	发明人
分类号	E21D11/28	主分类号	E21D11/28
代理机构		代理人
主权项
地址

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