Improvements in or relating to thermionic valve circuits for causing abrupt changes in current and/or voltage,申请号GB19460016014-传众专利搜索

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发明名称	Improvements in or relating to thermionic valve circuits for causing abrupt changes in current and/or voltage
摘要
申请公布号	GB621869(A)	申请公布日期	1949.04.21
申请号	GB19460016014	申请日期	1946.05.27
申请人	PHILIPS LAMPS LIMITED	发明人
分类号	H03K3/43	主分类号	H03K3/43
代理机构		代理人
主权项
地址

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