Tube amplificateur à onde progressive avec champ magnétique transversal.,申请号CHD273805-传众专利搜索

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发明名称	Tube amplificateur à onde progressive avec champ magnétique transversal.
摘要
申请公布号	CH273805(A)	申请公布日期	1951.02.28
申请号	CHD273805	申请日期	1948.03.19
申请人	COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL	发明人	COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
分类号	H01J25/44;H01J25/74	主分类号	H01J25/44
代理机构		代理人
主权项
地址

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