Improvements in or relating to the manufacture of poppet valves,申请号GB19400010052-传众专利搜索

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发明名称	Improvements in or relating to the manufacture of poppet valves
摘要
申请公布号	GB546016(A)	申请公布日期	1942.06.24
申请号	GB19400010052	申请日期	1940.06.08
申请人	EATON MANUFACTURING COMPANY	发明人
分类号	F01L3/02	主分类号	F01L3/02
代理机构		代理人
主权项
地址

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