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发明名称
Installation de réglage du pas de deux hélices coaxiales tournant en sens inverse l'une de l'autre.
摘要
申请公布号
CH253392(A)
申请公布日期
1948.02.29
申请号
CHD253392
申请日期
1944.01.31
申请人
DOUSSAIN,ROBERT
发明人
DOUSSAIN,ROBERT
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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