Improvements in and relating to hydraulic reducing valves,申请号GB19390032030-传众专利搜索

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发明名称	Improvements in and relating to hydraulic reducing valves
摘要
申请公布号	GB536654(A)	申请公布日期	1941.05.22
申请号	GB19390032030	申请日期	1939.12.12
申请人	JOHN MAURICE TOWLER;FRANK HATHORN TOWLER	发明人
分类号	G05D16/10	主分类号	G05D16/10
代理机构		代理人
主权项
地址

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