Pump,申请号US19390289974-传众专利搜索

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法人/股东/高管

发明名称	Pump
摘要
申请公布号	US2289706(A)	申请公布日期	1942.07.14
申请号	US19390289974	申请日期	1939.08.14
申请人	HAY DAVID C;HAYS ROY W	发明人	HAY DAVID C.;HAYS ROY W.
分类号	F04B19/14	主分类号	F04B19/14
代理机构		代理人
主权项
地址

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