Automatic rotary flood valves,申请号US19570691584-传众专利搜索

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发明名称	Automatic rotary flood valves
摘要
申请公布号	US2962043(A)	申请公布日期	1960.11.29
申请号	US19570691584	申请日期	1957.10.22
申请人	WILLIAM OLIVER	发明人	OLIVER WILLIAM
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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