A machine for making constructional elements for heat exchangers and the like, from metal strip,申请号GB19460036759-传众专利搜索

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发明名称	A machine for making constructional elements for heat exchangers and the like, from metal strip
摘要
申请公布号	GB627040(A)	申请公布日期	1949.07.26
申请号	GB19460036759	申请日期	1946.12.12
申请人	THOMAS JAMES ARTHUR	发明人
分类号	B21D53/02	主分类号	B21D53/02
代理机构		代理人
主权项
地址

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