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发明名称
Lautsprecheranordnung bzw. -ausbildung für Diktiergeräte
摘要
申请公布号
AT182538(B)
申请公布日期
1955.07.11
申请号
ATD182538
申请日期
1953.09.11
申请人
WIENER RADIOWERKE AKTIENGESELLSCHAFT
发明人
DIPL. ING. FERDINAND ZECHA
分类号
主分类号
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