Improvements relating to the bending of metal pipes,申请号GB19420012532-传众专利搜索

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发明名称	Improvements relating to the bending of metal pipes
摘要
申请公布号	GB567753(A)	申请公布日期	1945.03.01
申请号	GB19420012532	申请日期	1942.09.04
申请人	FREDERICK CECIL DRAPER	发明人
分类号	B21D9/16	主分类号	B21D9/16
代理机构		代理人
主权项
地址

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