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发明名称
Schaltungsanordnung für Fernsprechanlagen mit mehreren Vermittlungsstellen.
摘要
申请公布号
CH205039(A)
申请公布日期
1939.05.31
申请号
CHD205039
申请日期
1938.06.10
申请人
TELEFONBAU UND NORMALZEIT G. M. B. H.
发明人
TELEFONBAU UND NORMALZEIT G. M. B. H.
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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