A method of producing highly emissive thermionic cathodes,申请号GB19310017543-传众专利搜索

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发明名称	A method of producing highly emissive thermionic cathodes
摘要
申请公布号	GB379432(A)	申请公布日期	1932.09.01
申请号	GB19310017543	申请日期	1931.06.17
申请人	RADIOAKTIENGESELLSCHAFT D. S. LOEWE;HEINZ BENJAMIN;ERWIN EHRIG	发明人
分类号	H01J9/04	主分类号	H01J9/04
代理机构		代理人
主权项
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