Heat exchanger cleaning device,申请号US19460710040-传众专利搜索

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发明名称	Heat exchanger cleaning device
摘要
申请公布号	US2634164(A)	申请公布日期	1953.04.07
申请号	US19460710040	申请日期	1946.11.15
申请人		发明人	DRAKE ROBERT W.
分类号	F28G9/00	主分类号	F28G9/00
代理机构		代理人
主权项
地址

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