Improvements in or relating to valve discharge water-waste preventors,申请号GB19360028170-传众专利搜索

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发明名称	Improvements in or relating to valve discharge water-waste preventors
摘要
申请公布号	GB470143(A)	申请公布日期	1937.08.10
申请号	GB19360028170	申请日期	1936.10.16
申请人	WILLIAM CHARLES GROENIGER	发明人
分类号	E03D1/30	主分类号	E03D1/30
代理机构		代理人
主权项
地址

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