Apparatus for spacing and fixing fins on tubes,申请号US19470745938-传众专利搜索

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发明名称	Apparatus for spacing and fixing fins on tubes
摘要
申请公布号	US2481490(A)	申请公布日期	1949.09.13
申请号	US19470745938	申请日期	1947.05.05
申请人	KEEPRITE CORPORATION	发明人	BENNETT FRANK M.;WEAVER CARL J.
分类号	B21D53/08	主分类号	B21D53/08
代理机构		代理人
主权项
地址

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