Method and apparatus for circulating water in swimming pools,申请号US19370130781-传众专利搜索

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发明名称	Method and apparatus for circulating water in swimming pools
摘要
申请公布号	US2218507(A)	申请公布日期	1940.10.22
申请号	US19370130781	申请日期	1937.03.13
申请人	JOSAM MANUFACTURING COMPANY	发明人	DAY LOUIS J.
分类号	C02F1/52;E04H4/12	主分类号	C02F1/52
代理机构		代理人
主权项
地址

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