Improvements in or relating to combined seal and guide for an internal-combustion engine valve stem and method of making the same,申请号GB19560013161-传众专利搜索

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发明名称	Improvements in or relating to combined seal and guide for an internal-combustion engine valve stem and method of making the same
摘要
申请公布号	GB783070(A)	申请公布日期	1957.09.18
申请号	GB19560013161	申请日期	1956.04.30
申请人	PERFECT CIRCLE CORPORATION	发明人
分类号	F01L3/08	主分类号	F01L3/08
代理机构		代理人
主权项
地址

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