Verstaerkergeraet zum Auflegen eines Fernhoerers zwecks handfreier Gespraechsfuehrung,申请号DE1950B012512-传众专利搜索

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发明名称	Verstaerkergeraet zum Auflegen eines Fernhoerers zwecks handfreier Gespraechsfuehrung
摘要
申请公布号	DE950920(C)	申请公布日期	1956.10.18
申请号	DE1950B012512	申请日期	1950.11.15
申请人	JOHN CHARLES SYDNEY BRANSON;LESLIE CLIFFORD BRANSON	发明人	BRANSON JOHN CHARLES SYDNEY;BRANSON LESLIE CLIFFORD
分类号	H04M1/62	主分类号	H04M1/62
代理机构		代理人
主权项
地址

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