Apparatus for controlling the hydrogen-ion concentration of water supplies for horticulture,申请号GB19640052173-传众专利搜索

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发明名称	Apparatus for controlling the hydrogen-ion concentration of water supplies for horticulture
摘要
申请公布号	GB1067739(A)	申请公布日期	1967.05.03
申请号	GB19640052173	申请日期	1964.12.23
申请人	HUMPHREY JAMES WELCH	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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