Apparatus for maintaining a predetermined quantity of liquid in a closed space,申请号US19510210579-传众专利搜索

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发明名称	Apparatus for maintaining a predetermined quantity of liquid in a closed space
摘要
申请公布号	US2777393(A)	申请公布日期	1957.01.15
申请号	US19510210579	申请日期	1951.02.12
申请人	WOODRUFF BEN H	发明人	WOODRUFF BEN H.
分类号	A23G9/20	主分类号	A23G9/20
代理机构		代理人
主权项
地址

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