Beruehrungsmikrofon mit Kohlekammer,申请号DE1941S147325D-传众专利搜索

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发明名称	Beruehrungsmikrofon mit Kohlekammer
摘要
申请公布号	DE744696(C)	申请公布日期	1955.01.17
申请号	DE1941S147325D	申请日期	1941.10.18
申请人	SIEMENS & HALSKE A. G., BERLIN UND MUENCHEN;DIPL.-ING. HANS PANZERBIETER, BERLIN-HASELHORST	发明人
分类号	H04R21/02	主分类号	H04R21/02
代理机构		代理人
主权项
地址

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