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发明名称
Schaltungsanordnung fuer Fernsprechnebenstellenanlagen mit Handbetrieb
摘要
申请公布号
DE919650(C)
申请公布日期
1954.11.02
申请号
DE1944M006305D
申请日期
1944.12.23
申请人
STANDARD ELEKTRIZITAETS-GESELLSCHAFT AKTIENGESELLSCHAFT
发明人
HEYDUCK ALFRED
分类号
H04M3/58;H04M9/00
主分类号
H04M3/58
代理机构
代理人
主权项
地址
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