Process for the manufacture of cathodes for electric discharge tubes,申请号GB19310012304-传众专利搜索

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发明名称	Process for the manufacture of cathodes for electric discharge tubes
摘要
申请公布号	GB360803(A)	申请公布日期	1931.11.12
申请号	GB19310012304	申请日期	1931.04.25
申请人	VEREINIGTE GLUHLAMPEN UND ELECTRICITATS ACTIENGESELLSCHAFT	发明人
分类号	H01J9/395	主分类号	H01J9/395
代理机构		代理人
主权项
地址

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