Flood control system,申请号US19490112587-传众专利搜索

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发明名称	Flood control system
摘要
申请公布号	US2569102(A)	申请公布日期	1951.09.25
申请号	US19490112587	申请日期	1949.08.26
申请人	HOWE ELRA F	发明人	HOWE ELRA F.
分类号	E03F5/22	主分类号	E03F5/22
代理机构		代理人
主权项
地址

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