Improvements in or relating to valve devices for hydraulic systems,申请号GB19490023914-传众专利搜索

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发明名称	Improvements in or relating to valve devices for hydraulic systems
摘要
申请公布号	GB718892(A)	申请公布日期	1954.11.24
申请号	GB19490023914	申请日期	1949.09.16
申请人	ORMEROD HEYWORTH HEAP	发明人
分类号	G05D7/01;G05D16/10	主分类号	G05D7/01
代理机构		代理人
主权项
地址

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