RETURN BEND CONSTRUCTION FOR HEAT EXCHANGERS,申请号USD3430692-传众专利搜索

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发明名称	RETURN BEND CONSTRUCTION FOR HEAT EXCHANGERS
摘要
申请公布号	US3430692(A)	申请公布日期	1969.03.04
申请号	USD3430692	申请日期	1967.06.16
申请人	JOHN KARMAZIN	发明人	JOHN KARMAZIN
分类号	F28F9/26;(IPC1-7):F28F9/12;F28F9/04;F28F19/00	主分类号	F28F9/26
代理机构		代理人
主权项
地址

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