An improved die for forming rectangular hollow articles from sheet material,申请号GB19450008323-传众专利搜索

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发明名称	An improved die for forming rectangular hollow articles from sheet material
摘要
申请公布号	GB589780(A)	申请公布日期	1947.06.30
申请号	GB19450008323	申请日期	1945.04.04
申请人	GEORGE FREDERICK DARLING	发明人
分类号	B21D5/01	主分类号	B21D5/01
代理机构		代理人
主权项
地址

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