Forming continuously-flanged openings in sheet metal,申请号GB19300030984-传众专利搜索

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发明名称	Forming continuously-flanged openings in sheet metal
摘要
申请公布号	GB361069(A)	申请公布日期	1931.11.19
申请号	GB19300030984	申请日期	1930.10.16
申请人	ALFRED ELLIOTT	发明人
分类号	B21D22/02	主分类号	B21D22/02
代理机构		代理人
主权项
地址

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