Improvements in connections for electron discharge tubes,申请号GB19280030138-传众专利搜索

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发明名称	Improvements in connections for electron discharge tubes
摘要
申请公布号	GB299310(A)	申请公布日期	1930.01.20
申请号	GB19280030138	申请日期	1928.10.18
申请人	LUCIEN LEVY	发明人
分类号	H03B19/10;H03D7/10;H03F1/16	主分类号	H03B19/10
代理机构		代理人
主权项
地址

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