Heating and air conditioning unit,申请号US19380245730-传众专利搜索

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发明名称	Heating and air conditioning unit
摘要
申请公布号	US2252784(A)	申请公布日期	1941.08.19
申请号	US19380245730	申请日期	1938.12.14
申请人	POWERS DONALD H	发明人	POWERS DONALD H.
分类号	F24H9/20;F28D21/00	主分类号	F24H9/20
代理机构		代理人
主权项
地址

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