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发明名称
Einrichtung zur Überwachung sprachgesteuerter Apparate.
摘要
申请公布号
CH266521(A)
申请公布日期
1950.01.31
申请号
CHD266521
申请日期
1946.01.29
申请人
IPSOPHON PATENTGESELLSCHAFT AG.
发明人
AG. IPSOPHON PATENTGESELLSCHAFT
分类号
H04M1/654;H04Q1/446
主分类号
H04M1/654
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代理人
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