Fers profilés, en forme de gouttières, pour soutènements de mines ou analogues,申请号FRD1085554-传众专利搜索

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发明名称	Fers profilés, en forme de gouttières, pour soutènements de mines ou analogues
摘要
申请公布号	FR1085554(A)	申请公布日期	1955.02.03
申请号	FRD1085554	申请日期	1953.10.23
申请人		发明人
分类号	B21B1/08;E21D11/20	主分类号	B21B1/08
代理机构		代理人
主权项
地址

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