Rotary sleeve valves,申请号US19640346195-传众专利搜索

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发明名称	Rotary sleeve valves
摘要
申请公布号	US3208719(A)	申请公布日期	1965.09.28
申请号	US19640346195	申请日期	1964.02.20
申请人	DRILLING TOOLS, INC.;ROBERT L. ERWIN	发明人	HULSEY ELDON E.
分类号	F16K5/04	主分类号	F16K5/04
代理机构		代理人
主权项
地址

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