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发明名称
Schaltungsanordnung fuer kleine Selbstwaehl-Nebenstellenanlagen
摘要
申请公布号
DE971825(C)
申请公布日期
1959.04.02
申请号
DE1952S031001
申请日期
1952.11.08
申请人
SUEDDEUTSCHE TELEFON-APPARATE-
发明人
WAGNER FRIEDRICH
分类号
H04M3/58
主分类号
H04M3/58
代理机构
代理人
主权项
地址
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