High frequency electronic device,申请号US19460707812-传众专利搜索

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发明名称	High frequency electronic device
摘要
申请公布号	US2768328(A)	申请公布日期	1956.10.23
申请号	US19460707812	申请日期	1946.11.05
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	PIERCE JOHN R.
分类号	H01J25/44;H03C5/04	主分类号	H01J25/44
代理机构		代理人
主权项
地址

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