Improvements in or relating to microphonic transmitters,申请号GB19410005403-传众专利搜索

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发明名称	Improvements in or relating to microphonic transmitters
摘要
申请公布号	GB548736(A)	申请公布日期	1942.10.22
申请号	GB19410005403	申请日期	1941.04.25
申请人	HARRY MEYER KIRSCHBAUM	发明人
分类号	H04R11/04	主分类号	H04R11/04
代理机构		代理人
主权项
地址

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