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发明名称
Perfectionnements aux méthodes et dispositifs d'atterrissage sans visibilité, et aux systèmes de sécurité en vol sans visibilité
摘要
申请公布号
FR814752(A)
申请公布日期
1937.06.29
申请号
FRD814752
申请日期
1936.12.10
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
G01S1/02
主分类号
G01S1/02
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代理人
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