Automatic water softener,申请号US19490074536-传众专利搜索

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发明名称	Automatic water softener
摘要
申请公布号	US2689218(A)	申请公布日期	1954.09.14
申请号	US19490074536	申请日期	1949.02.04
申请人	AMERICAN WATER SOFTENER COMPANY	发明人	WAUGH HARVEY C.
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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