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发明名称
Schaltungsanordnung fuer Fernsprechanlagen mit handbedienten Verbindungseinrichtungen und Ansagevorrichtungen zur fernmuendlichen Ansage vorbereiteter Texte
摘要
申请公布号
DE1012964(B)
申请公布日期
1957.08.01
申请号
DE1955T011700
申请日期
1955.12.24
申请人
TELEFONBAU UND NORMALZEIT G.M.B.H.
发明人
FEITH GUENTHER
分类号
H04M3/428
主分类号
H04M3/428
代理机构
代理人
主权项
地址
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