Spring leaf arching machine,申请号US19330673554-传众专利搜索

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发明名称	Spring leaf arching machine
摘要
申请公布号	US1933957(A)	申请公布日期	1933.11.07
申请号	US19330673554	申请日期	1933.05.29
申请人	BALDWIN JAMES C;MCKNIGHT CHAD C	发明人	BALDWIN JAMES C.;MCKNIGHT CHAD C.
分类号	B21D53/88	主分类号	B21D53/88
代理机构		代理人
主权项
地址

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