Heat exchange device,申请号US19330657852-传众专利搜索

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发明名称	Heat exchange device
摘要
申请公布号	US1922534(A)	申请公布日期	1933.08.15
申请号	US19330657852	申请日期	1933.02.21
申请人	EDWARD ELLSWORTH JOHN;EILSWORTH JOSEPH H	发明人	ELLSWORTH JOHN EDWARD;EILSWORTH JOSEPH H.
分类号	F24H1/34	主分类号	F24H1/34
代理机构		代理人
主权项
地址

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