Fluid lift plunger for wells,申请号US19560585881-传众专利搜索

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发明名称	Fluid lift plunger for wells
摘要
申请公布号	US2878754(A)	申请公布日期	1959.03.24
申请号	US19560585881	申请日期	1956.05.18
申请人	HAROLD BROWN COMPANY	发明人	MCMURRY EVERETT D.
分类号	E21B43/12;F04B47/12	主分类号	E21B43/12
代理机构		代理人
主权项
地址

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