Improvements in electric discharge tubes,申请号GB19310018157-传众专利搜索

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发明名称	Improvements in electric discharge tubes
摘要
申请公布号	GB390127(A)	申请公布日期	1933.03.30
申请号	GB19310018157	申请日期	1931.06.23
申请人	C. H. F. MUELLER, AKTIENGESELLSCHAFT	发明人
分类号	H01J5/06;H01J35/16	主分类号	H01J5/06
代理机构		代理人
主权项
地址

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