Water softening apparatus,申请号US19500188735-传众专利搜索

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发明名称	Water softening apparatus
摘要
申请公布号	US2722514(A)	申请公布日期	1955.11.01
申请号	US19500188735	申请日期	1950.10.06
申请人	SLOAN FRANK P	发明人	SLOAN FRANK P.
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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