Machine universelle pour la fabrication des ressorts spiraux,申请号FRD826507-传众专利搜索

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发明名称	Machine universelle pour la fabrication des ressorts spiraux
摘要
申请公布号	FR826507(A)	申请公布日期	1938.04.01
申请号	FRD826507	申请日期	1937.09.10
申请人	SLEEPER & HARTLEY INCORPORATED	发明人	HENRY BLOUNT WILLIAM,
分类号	B21F3/06	主分类号	B21F3/06
代理机构		代理人
主权项
地址

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