Hydraulically operated flow reversing valve,申请号US19370121068-传众专利搜索

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发明名称	Hydraulically operated flow reversing valve
摘要
申请公布号	US2175398(A)	申请公布日期	1939.10.10
申请号	US19370121068	申请日期	1937.01.18
申请人	TRABON ENGINEERING CORPORATION	发明人	HULL EDWIN J.
分类号	F16K31/124	主分类号	F16K31/124
代理机构		代理人
主权项
地址

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