Oil well jet propulsion unit,申请号US19490132578-传众专利搜索

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发明名称	Oil well jet propulsion unit
摘要
申请公布号	US2699125(A)	申请公布日期	1955.01.11
申请号	US19490132578	申请日期	1949.12.12
申请人	WALTER SCOTT	发明人	SCOTT WALTER
分类号	E21B43/12;E21B43/24;F04F5/24	主分类号	E21B43/12
代理机构		代理人
主权项
地址

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