Means and method for raising liquid from wells,申请号US19280326234-传众专利搜索

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发明名称	Means and method for raising liquid from wells
摘要
申请公布号	US1846002(A)	申请公布日期	1932.02.16
申请号	US19280326234	申请日期	1928.12.15
申请人	HUGHES TOOL COMPANY	发明人	FLETCHER HAROLD W.
分类号	F04B47/12	主分类号	F04B47/12
代理机构		代理人
主权项
地址

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