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发明名称
SCHALTUNGSANORDNUNG FUER VORFELDEINRICHTUNGEN FUER TEILNEHMER ANSCHLUESSE IN FERNMELDE INSBESONDERE FERNSPRECHANLAGEN
摘要
申请公布号
DE1961925(B2)
申请公布日期
1972.03.30
申请号
DE19691961925
申请日期
1969.12.10
申请人
发明人
分类号
H04Q3/00;H04Q5/24;(IPC1-7):H04Q5/24
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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