TWO WAY EARTH BORING FLUID MOTOR,申请号US19750638639-传众专利搜索

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发明名称	TWO WAY EARTH BORING FLUID MOTOR
摘要
申请公布号	US4051910(A)	申请公布日期	1977.10.04
申请号	US19750638639	申请日期	1975.12.08
申请人	CLARK, WALLACE	发明人	CLARK, WALLACE
分类号	E21B4/02;F04C2/107;(IPC1-7):E21B1/06	主分类号	E21B4/02
代理机构		代理人
主权项
地址

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