Double acting deep well pump,申请号US19310567269-传众专利搜索

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发明名称	Double acting deep well pump
摘要
申请公布号	US1851802(A)	申请公布日期	1932.03.29
申请号	US19310567269	申请日期	1931.10.06
申请人	MAGIC CITY SPECIALTY COMPANY	发明人	BOONE CHARLES G.
分类号	F04B47/04	主分类号	F04B47/04
代理机构		代理人
主权项
地址

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