Water softening apparatus,申请号US19290369149-传众专利搜索

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发明名称	Water softening apparatus
摘要
申请公布号	US1893933(A)	申请公布日期	1933.01.10
申请号	US19290369149	申请日期	1929.06.07
申请人	AUTOMATIC WATER SOFTENER COMPANY	发明人	DOTTERWEICH ANDREW J.
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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