Pressure responsive sealing devices,申请号US19520278203-传众专利搜索

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发明名称	Pressure responsive sealing devices
摘要
申请公布号	US2718971(A)	申请公布日期	1955.09.27
申请号	US19520278203	申请日期	1952.03.24
申请人	SENIOR, JUENGLING AND KNALL	发明人	JUENGLING KARL F.
分类号	C21B7/18;F16J15/34;F16J15/46;F16K1/34	主分类号	C21B7/18
代理机构		代理人
主权项
地址

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