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经营范围
发明名称
REVERSIBLE ELEKTROAKUSTUSCHE WANDLERANORDNUNG
摘要
申请公布号
DE2825396(A1)
申请公布日期
1978.12.21
申请号
DE19782825396
申请日期
1978.06.09
申请人
THOMSON-CSF,S.A.
发明人
MAERFELD,CHARLES
分类号
G10K11/28;(IPC1-7):G01S3/80;H04R1/34;H04R1/44
主分类号
G10K11/28
代理机构
代理人
主权项
地址
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