Tube amplificateur ou émetteur à courant de tête ou de paroi,申请号FRD895444-传众专利搜索

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发明名称	Tube amplificateur ou émetteur à courant de tête ou de paroi
摘要
申请公布号	FR895444(A)	申请公布日期	1945.01.24
申请号	FRD895444	申请日期	1943.06.11
申请人	PATENTVERWERTUNGS-GESELLSCHAFT MIT BESCHRANKTER HAFTUNG HERMES	发明人
分类号	H01J3/02	主分类号	H01J3/02
代理机构		代理人
主权项
地址

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