Cathode ray tube,申请号US19320622925-传众专利搜索

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发明名称	Cathode ray tube
摘要
申请公布号	US2148588(A)	申请公布日期	1939.02.28
申请号	US19320622925	申请日期	1932.07.16
申请人	RADIO CORPORATION	发明人	SNOW HAROLD A.
分类号	H01J9/22;H01J29/48;H01J29/82	主分类号	H01J9/22
代理机构		代理人
主权项
地址

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