Appareil auxiliaire pour effectuer plusieurs perçages simultanés au moyen d'une machine à percer à une seule broche porte-foret,申请号FRD918675-传众专利搜索

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发明名称	Appareil auxiliaire pour effectuer plusieurs perçages simultanés au moyen d'une machine à percer à une seule broche porte-foret
摘要
申请公布号	FR918675(A)	申请公布日期	1947.02.14
申请号	FRD918675	申请日期	1945.12.10
申请人		发明人	HARPER GEOFFREY MARTIN
分类号	B23B39/16	主分类号	B23B39/16
代理机构		代理人
主权项
地址

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