Water-softening apparatus,申请号US19270239489-传众专利搜索

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发明名称	Water-softening apparatus
摘要
申请公布号	US1773523(A)	申请公布日期	1930.08.19
申请号	US19270239489	申请日期	1927.12.12
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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