Furnace heat exchange apparatus,申请号US19250049255-传众专利搜索

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发明名称	Furnace heat exchange apparatus
摘要
申请公布号	US1820199(A)	申请公布日期	1931.08.25
申请号	US19250049255	申请日期	1925.08.10
申请人	THE AIR PREHEATER CORPORATION	发明人	RILEY ROBERT SANFORD
分类号	F28D19/04	主分类号	F28D19/04
代理机构		代理人
主权项
地址

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