Improvements in or relating to cathode heater elements and methods of making such elements,申请号GB19520025418-传众专利搜索

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发明名称	Improvements in or relating to cathode heater elements and methods of making such elements
摘要
申请公布号	GB763049(A)	申请公布日期	1956.12.05
申请号	GB19520025418	申请日期	1952.10.10
申请人	THE RAULAND CORPORATION	发明人
分类号	H01J9/08	主分类号	H01J9/08
代理机构		代理人
主权项
地址

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