Closing tool for outstanding sheet-metal seams,申请号US19570641960-传众专利搜索

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发明名称	Closing tool for outstanding sheet-metal seams
摘要
申请公布号	US2903988(A)	申请公布日期	1959.09.15
申请号	US19570641960	申请日期	1957.02.25
申请人	ENGEL SHEET METAL EQUIPMENT, INC.	发明人	ENGEL CHARLES F.;WOSKIN DAVID NORMAN DE
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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