Improvements in making coned tubes from sheet material,申请号GB19390031043-传众专利搜索

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发明名称	Improvements in making coned tubes from sheet material
摘要
申请公布号	GB541546(A)	申请公布日期	1941.12.02
申请号	GB19390031043	申请日期	1939.11.29
申请人	WILLIAM LOVE	发明人
分类号	B21D37/18	主分类号	B21D37/18
代理机构		代理人
主权项
地址

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