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发明名称
Nachrichtenanlage mit Trägerfrequenzbetrieb
摘要
申请公布号
AT178379(B)
申请公布日期
1954.05.10
申请号
ATD178379
申请日期
1953.04.29
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
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主分类号
代理机构
代理人
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