Improvements in and relating to heat exchange devices,申请号GB19380030847-传众专利搜索

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发明名称	Improvements in and relating to heat exchange devices
摘要
申请公布号	GB520546(A)	申请公布日期	1940.04.26
申请号	GB19380030847	申请日期	1938.10.25
申请人	ISTVAN BECK	发明人
分类号	F28F1/12;F28F1/32	主分类号	F28F1/12
代理机构		代理人
主权项
地址

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