An improved valve for water softeners,申请号GB19530001716-传众专利搜索

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发明名称	An improved valve for water softeners
摘要
申请公布号	GB719023(A)	申请公布日期	1954.11.24
申请号	GB19530001716	申请日期	1953.01.21
申请人	VINCENT FRANK ROBERTS	发明人
分类号	C02F1/42	主分类号	C02F1/42
代理机构		代理人
主权项
地址

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