Method of making clutch springs,申请号US19330677207-传众专利搜索

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发明名称	Method of making clutch springs
摘要
申请公布号	US1935147(A)	申请公布日期	1933.11.14
申请号	US19330677207	申请日期	1933.06.23
申请人	L. G. S. DEVICES CORPORATION	发明人	DREXLER CHARLES
分类号	B21F35/00;F16D13/08	主分类号	B21F35/00
代理机构		代理人
主权项
地址

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