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发明名称
Einrichtung zur Erzeugung von Schwingungen hoher Frequenzgenauigkeit
摘要
申请公布号
AT170815(B)
申请公布日期
1952.03.25
申请号
ATD170815
申请日期
1948.08.26
申请人
RADIO CORPORATION OF AMERICA
发明人
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