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发明名称
Verfahren zum Eichen von Mikrofonen, insbesondere Kondensatormikrofonen, mit nachgeschalteten Verstaerkern
摘要
申请公布号
DE707816(C)
申请公布日期
1941.07.04
申请号
DE1936S124678D
申请日期
1936.10.25
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
DOMSCH GUENTER
分类号
H04R29/00
主分类号
H04R29/00
代理机构
代理人
主权项
地址
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