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发明名称
Berührungsmikrofon mit in einem Gehäuse eingebauter Mikrofonkapsel.
摘要
申请公布号
CH198550(A)
申请公布日期
1938.06.30
申请号
CHD198550
申请日期
1936.09.01
申请人
SIEMENS APPARATE UND MASCHINEN GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
发明人
SIEMENS APPARATE UND MASCHINEN GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
分类号
主分类号
代理机构
代理人
主权项
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