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发明名称
Schaltungsanordnung zur Auswertung von Informationen durch Blinde
摘要
申请公布号
DE1003279(B)
申请公布日期
1957.02.28
申请号
DE1955ST10101
申请日期
1955.07.09
申请人
STANDARD ELEKTRIK AKTIENGESELLSCHAFT
发明人
BLUEMM DIPL.-ING. WERNER
分类号
H04M3/64
主分类号
H04M3/64
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