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经营范围
发明名称
Dispositif de commande de variation du pas d'hélices ou d'ailes tournantes coaxiales indépendantes en rotation
摘要
申请公布号
FR989156(A)
申请公布日期
1951.09.05
申请号
FRD989156
申请日期
1944.02.07
申请人
发明人
BREGUET LOUIS;DEVILLERS RENE
分类号
B64C11/30
主分类号
B64C11/30
代理机构
代理人
主权项
地址
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