Improvements in or relating to poppet valves for internal combustion engines,申请号GB19570002429-传众专利搜索

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发明名称	Improvements in or relating to poppet valves for internal combustion engines
摘要
申请公布号	GB802980(A)	申请公布日期	1958.10.15
申请号	GB19570002429	申请日期	1957.01.23
申请人	GENERAL MOTORS 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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