Hydraulic pilot operated directional control valve,申请号US19880196011-传众专利搜索

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发明名称	Hydraulic pilot operated directional control valve
摘要
申请公布号	US4832082(A)	申请公布日期	1989.05.23
申请号	US19880196011	申请日期	1988.04.22
申请人	HITACHI CONSTRUCTION MACHINERY CO., LTD.	发明人	HIRATA, TOICHI;TANAKA, HIDEAKI;SUGIYAMA, GENROKU;SATOH, SHINICHI
分类号	F15B11/00;F15B13/04;F15B13/042;F15B21/04	主分类号	F15B11/00
代理机构		代理人
主权项
地址

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