Improvements in or relating to high frequency amplifying systems,申请号GB19300023361-传众专利搜索

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发明名称	Improvements in or relating to high frequency amplifying systems
摘要
申请公布号	GB360463(A)	申请公布日期	1931.11.02
申请号	GB19300023361	申请日期	1930.08.02
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED;HENRY JOSEPH ROUND	发明人
分类号	H03D1/00	主分类号	H03D1/00
代理机构		代理人
主权项
地址

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