Improvements in or relating to tools for use in the manufacture of heat-interchangers,申请号GB19530012235-传众专利搜索

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发明名称	Improvements in or relating to tools for use in the manufacture of heat-interchangers
摘要
申请公布号	GB724344(A)	申请公布日期	1955.02.16
申请号	GB19530012235	申请日期	1953.05.04
申请人	ALEXANDRE BRAUN	发明人
分类号	B21D53/08	主分类号	B21D53/08
代理机构		代理人
主权项
地址

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