Heat exchange tube protector,申请号US19400364131-传众专利搜索

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发明名称	Heat exchange tube protector
摘要
申请公布号	US2272863(A)	申请公布日期	1942.02.10
申请号	US19400364131	申请日期	1940.11.04
申请人	YOUNG FRED M	发明人	YOUNG FRED M.
分类号	F28F19/00;F28F27/02	主分类号	F28F19/00
代理机构		代理人
主权项
地址

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