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发明名称
SCHALTUNGSANORDNUNG ZUR ANSCHALTUNG MEHRERER RUFLEITUNGEN AN EINE RUFWECHSELSTROMQUELLE
摘要
申请公布号
DE2039921(B2)
申请公布日期
1977.07.21
申请号
DE19702039921
申请日期
1970.08.11
申请人
发明人
分类号
H04M19/02;(IPC1-7):H04M19/02;H04M3/02;H04Q11/04
主分类号
H04M19/02
代理机构
代理人
主权项
地址
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