Method and apparatus for operating wells,申请号US19270233348-传众专利搜索

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发明名称	Method and apparatus for operating wells
摘要
申请公布号	US1834946(A)	申请公布日期	1931.12.08
申请号	US19270233348	申请日期	1927.11.15
申请人	PALMER HALLIBURTON ERLE	发明人	HALLIBURTON ERLE PALMER
分类号	E21B33/14;E21B43/14	主分类号	E21B33/14
代理机构		代理人
主权项
地址

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