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发明名称
Umschalteinrichtung fuer ein elektrisches Nachrichten-UEbertragungssystem mit vorzugsweise mehreren Betriebs- und einem Ersatzkanal
摘要
申请公布号
DE1260563(B)
申请公布日期
1968.02.08
申请号
DE196300S4046
申请日期
1963.03.07
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
KNAPP DR.-ING. HERBERT
分类号
H04M11/00
主分类号
H04M11/00
代理机构
代理人
主权项
地址
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