Improvements in sealing rings for use between two flat surfaces,申请号GB19540029422-传众专利搜索

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发明名称	Improvements in sealing rings for use between two flat surfaces
摘要
申请公布号	GB781653(A)	申请公布日期	1957.08.21
申请号	GB19540029422	申请日期	1954.10.12
申请人	DOUGLAS WALKER COLVIN	发明人
分类号	F16J15/08;F16L23/20	主分类号	F16J15/08
代理机构		代理人
主权项
地址

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