Perfectionnements aux soutènements marchants dans les mines,申请号FR19610882579-传众专利搜索

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发明名称	Perfectionnements aux soutènements marchants dans les mines
摘要
申请公布号	FR1316634(A)	申请公布日期	1963.02.01
申请号	FR19610882579	申请日期	1961.12.20
申请人		发明人	BEAUDOUX EMILE
分类号	E21D23/04;E21D23/08	主分类号	E21D23/04
代理机构		代理人
主权项
地址

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