Gas discharge tuning indicator,申请号US19350003432-传众专利搜索

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发明名称	Gas discharge tuning indicator
摘要
申请公布号	US2120955(A)	申请公布日期	1938.06.14
申请号	US19350003432	申请日期	1935.01.25
申请人	THE SPARKS-WITHINGTON COMPANY	发明人	SCOFIELD THEODORE J.
分类号	H01J17/40	主分类号	H01J17/40
代理机构		代理人
主权项
地址

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