Method of tube renovation,申请号US19390272556-传众专利搜索

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发明名称	Method of tube renovation
摘要
申请公布号	US2200528(A)	申请公布日期	1940.05.14
申请号	US19390272556	申请日期	1939.05.09
申请人	ROBERT ARMSTRONG	发明人	ARMSTRONG ROBERT
分类号	F28F11/00	主分类号	F28F11/00
代理机构		代理人
主权项
地址

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