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发明名称
Schaltungsanordnung fuer halbselbsttaetige Fernsprechanlagen
摘要
申请公布号
DE723229(C)
申请公布日期
1942.07.31
申请号
DE1940S141886D
申请日期
1940.08.03
申请人
SIEMENS & HALSKE AG.
发明人
FRITSCHE DIPL.-ING. HANS-JUERGEN
分类号
H04M3/60
主分类号
H04M3/60
代理机构
代理人
主权项
地址
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