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发明名称
SCHALTUNGSANORDUNG FUR EINE RUF-,TURSPRECH- UND TUROFFNERANLAGE
摘要
申请公布号
PT68875(A)
申请公布日期
1979.01.01
申请号
PT19780068875
申请日期
1978.12.05
申请人
S. SIEDLE & SOHNE TELEFON-UND TELEGRAFENWERKE GMBH.
发明人
分类号
H04M11/02;(IPC1-7):H04M/
主分类号
H04M11/02
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代理人
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