Improvements in low pressure apparatus for amplifying electrical signals,申请号GB19320008970-传众专利搜索

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发明名称	Improvements in low pressure apparatus for amplifying electrical signals
摘要
申请公布号	GB395104(A)	申请公布日期	1933.07.13
申请号	GB19320008970	申请日期	1932.03.29
申请人	MANFRED VON ARDENNE	发明人
分类号	H01J40/00	主分类号	H01J40/00
代理机构		代理人
主权项
地址

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