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发明名称
Sprechstelle für Telephonanlagen, insbesondere Teilnehmerstation
摘要
申请公布号
AT180600(B)
申请公布日期
1954.12.27
申请号
ATD180600
申请日期
1953.03.24
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
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主分类号
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