Tubes à décharge remplis de gaz,申请号FRD700939-传众专利搜索

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发明名称	Tubes à décharge remplis de gaz
摘要
申请公布号	FR700939(A)	申请公布日期	1931.03.09
申请号	FRD700939	申请日期	1930.08.21
申请人	TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.	发明人
分类号	H01J19/30	主分类号	H01J19/30
代理机构		代理人
主权项
地址

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