Method of manufacturing heat exchangers,申请号US19350052818-传众专利搜索

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发明名称	Method of manufacturing heat exchangers
摘要
申请公布号	US2081303(A)	申请公布日期	1937.05.25
申请号	US19350052818	申请日期	1935.12.04
申请人	KARMAZIN ENGINEERING COMPANY	发明人	KARMAZIN JOHN
分类号	B21C37/24	主分类号	B21C37/24
代理机构		代理人
主权项
地址

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