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发明名称
Perfectionnements aux dispositifs de comparaison de fréquences
摘要
申请公布号
FR1383062(A)
申请公布日期
1964.12.24
申请号
FR19630953308
申请日期
1963.11.12
申请人
THE DE HAVILLAND AIRCRAFT COMPANY LIMITED
发明人
分类号
H02P8/00
主分类号
H02P8/00
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代理人
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