Improvements in attachments for the mouthpieces of telephone transmitters,申请号GB19310034997-传众专利搜索

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发明名称	Improvements in attachments for the mouthpieces of telephone transmitters
摘要
申请公布号	GB394653(A)	申请公布日期	1933.06.19
申请号	GB19310034997	申请日期	1931.12.17
申请人	WALTER GODAERT	发明人
分类号	H04R1/08	主分类号	H04R1/08
代理机构		代理人
主权项
地址

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