Improvements in or relating to protective arrangements for electric circuits employing gas discharge tubes,申请号GB19290009039-传众专利搜索

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发明名称	Improvements in or relating to protective arrangements for electric circuits employing gas discharge tubes
摘要
申请公布号	GB330942(A)	申请公布日期	1930.06.20
申请号	GB19290009039	申请日期	1929.03.20
申请人	AUTOMATIC TELEPHONE MANUFACTURING COMPANY LIMITED;THOMAS BLASHILL	发明人
分类号	H04M19/00	主分类号	H04M19/00
代理机构		代理人
主权项
地址

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