Improvements in thermionic valve circuit arrangements,申请号GB19400009370-传众专利搜索

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发明名称	Improvements in thermionic valve circuit arrangements
摘要
申请公布号	GB541272(A)	申请公布日期	1941.11.20
申请号	GB19400009370	申请日期	1940.05.28
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED;CYRIL CRYER WHITEHEAD	发明人
分类号	H03F3/28;H03F3/32	主分类号	H03F3/28
代理机构		代理人
主权项
地址

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