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发明名称
Schaltungsanordnung fuer Fernsprechuntervermittlungsstellen
摘要
申请公布号
DE682327(C)
申请公布日期
1939.10.12
申请号
DE1936T046242D
申请日期
1936.01.09
申请人
TELEFONBAU UND NORMALZEIT LEHNER & CO.
发明人
分类号
H04Q3/58
主分类号
H04Q3/58
代理机构
代理人
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地址
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