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发明名称
Schaltungsanordnung für Fernsprechanlagen, bei denen die Teilnemeranschlußleitungen mittels Kopplung gruppenweise zusammengefaßt sind
摘要
申请公布号
AT205085(B)
申请公布日期
1959.09.10
申请号
AT19550004666
申请日期
1955.08.18
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
主分类号
代理机构
代理人
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地址
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