Working barrel for deep well pumps,申请号US19320595987-传众专利搜索

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发明名称	Working barrel for deep well pumps
摘要
申请公布号	US1953172(A)	申请公布日期	1934.04.03
申请号	US19320595987	申请日期	1932.03.01
申请人	THE CORRECT MEASURE COMPANY	发明人	GRIFFITHS ORAH E.
分类号	F04B53/16	主分类号	F04B53/16
代理机构		代理人
主权项
地址

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