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发明名称
Verfahren zur Änderung der Richtcharakteristik eines aus mehreren Einzelmikrophonen bestehenden Schallempfängers.
摘要
申请公布号
CH281609(A)
申请公布日期
1952.03.15
申请号
CHD281609
申请日期
1950.02.13
申请人
NORDWESTDEUTSCHER RUNDFUNK
发明人
RUNDFUNK NORDWESTDEUTSCHER
分类号
H04R3/00
主分类号
H04R3/00
代理机构
代理人
主权项
地址
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