Sheet metal seaming machine,申请号US19370164169-传众专利搜索

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发明名称	Sheet metal seaming machine
摘要
申请公布号	US2171297(A)	申请公布日期	1939.08.29
申请号	US19370164169	申请日期	1937.09.16
申请人	ANDREW ZAHNER;ZAHNER LEO W	发明人	ZAHNER ANDREW;ZAHNER LEO W.
分类号	B21D39/02	主分类号	B21D39/02
代理机构		代理人
主权项
地址

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