Improvements in or relating to capacitor microphone amplifiers,申请号GB19640023411-传众专利搜索

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发明名称	Improvements in or relating to capacitor microphone amplifiers
摘要
申请公布号	GB1028591(A)	申请公布日期	1966.05.04
申请号	GB19640023411	申请日期	1964.06.05
申请人	PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED	发明人
分类号	H04R19/04	主分类号	H04R19/04
代理机构		代理人
主权项
地址

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