Centrifugal pump with impeller supporting wear rings,申请号US19450572340-传众专利搜索

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发明名称	Centrifugal pump with impeller supporting wear rings
摘要
申请公布号	US2440947(A)	申请公布日期	1948.05.04
申请号	US19450572340	申请日期	1945.01.11
申请人	A. O. SMITH CORPORATION	发明人	HART EDWARD
分类号	F04D29/16	主分类号	F04D29/16
代理机构		代理人
主权项
地址

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