Machine for manufacturing torsion springs,申请号US19600000589-传众专利搜索

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发明名称	Machine for manufacturing torsion springs
摘要
申请公布号	US3144886(A)	申请公布日期	1964.08.18
申请号	US19600000589	申请日期	1960.01.05
申请人	WILLARD JR CHARLES L	发明人	JR. CHARLES L. WILLARD,
分类号	B21F1/00;B21F3/00	主分类号	B21F1/00
代理机构		代理人
主权项
地址

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