SURFACE GAP SPARK PLUG,申请号US19690813947-传众专利搜索

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发明名称	SURFACE GAP SPARK PLUG
摘要
申请公布号	US3581141(A)	申请公布日期	1971.05.25
申请号	US19690813947	申请日期	1969.04.07
申请人	ETHYL CORP.	发明人	RICHARD C. BEAUBIER
分类号	H01T13/52;(IPC1-7):H01T13/32	主分类号	H01T13/52
代理机构		代理人
主权项
地址

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