Electronic relay device,申请号US19360116689-传众专利搜索

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发明名称	Electronic relay device
摘要
申请公布号	US2259507(A)	申请公布日期	1941.10.21
申请号	US19360116689	申请日期	1936.12.19
申请人	RADIO CORPORATION OF AMERICA	发明人	IAMS HARLEY
分类号	H01J29/52;H01J31/12	主分类号	H01J29/52
代理机构		代理人
主权项
地址

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