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发明名称
Tasteinrichtung für eine Anordnung zur Signalübertragung in Nachrichtenverbindungen
摘要
申请公布号
AT189236(B)
申请公布日期
1957.03.11
申请号
ATD189236
申请日期
1954.07.30
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
主分类号
代理机构
代理人
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