Spark plug insulators containing zno,申请号US19520284470-传众专利搜索

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发明名称	Spark plug insulators containing zno
摘要
申请公布号	US2804392(A)	申请公布日期	1957.08.27
申请号	US19520284470	申请日期	1952.04.25
申请人	CHAMPION SPARK PLUG COMPANY	发明人	SCHURECHT HARRY G.
分类号	H01B3/02;H01T13/38	主分类号	H01B3/02
代理机构		代理人
主权项
地址

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