Procédé de fabrication de vis à têtes munies d'empreintes creuses et machines pour la mise en oeuvre de ce procédé,申请号FRD1107739-传众专利搜索

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发明名称	Procédé de fabrication de vis à têtes munies d'empreintes creuses et machines pour la mise en oeuvre de ce procédé
摘要
申请公布号	FR1107739(A)	申请公布日期	1956.01.04
申请号	FRD1107739	申请日期	1954.06.28
申请人		发明人	LAFLEUR ANDRE-GABRIEL;MARECHAL ADRIEN
分类号	B21G3/32;B21K1/46	主分类号	B21G3/32
代理机构		代理人
主权项
地址

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