Machine perfectionnée pour encochage d'éléments d'étayage de mines,申请号FRD1176962-传众专利搜索

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发明名称	Machine perfectionnée pour encochage d'éléments d'étayage de mines
摘要
申请公布号	FR1176962(A)	申请公布日期	1959.04.17
申请号	FRD1176962	申请日期	1957.05.03
申请人		发明人	BONFILLOU ETIENNE
分类号	B27B5/22;E21D11/03	主分类号	B27B5/22
代理机构		代理人
主权项
地址

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