Flexible, rolling-seal type valves,申请号US19510217810-传众专利搜索

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发明名称	Flexible, rolling-seal type valves
摘要
申请公布号	US2781051(A)	申请公布日期	1957.02.12
申请号	US19510217810	申请日期	1951.03.27
申请人	ORIGINS INCORPORATED	发明人	HAWLEY DEAN A.
分类号	F16K7/10	主分类号	F16K7/10
代理机构		代理人
主权项
地址

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