Method of making gear wheels,申请号US19340725947-传众专利搜索

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发明名称	Method of making gear wheels
摘要
申请公布号	US2072308(A)	申请公布日期	1937.03.02
申请号	US19340725947	申请日期	1934.05.16
申请人	LABIN FRANK R	发明人	LABIN FRANK R.
分类号	B21D53/28;B23Q7/14	主分类号	B21D53/28
代理机构		代理人
主权项
地址

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