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发明名称
Hélice à pas automatiquement variable
摘要
申请公布号
FR691142(A)
申请公布日期
1930.10.01
申请号
FRD691142
申请日期
1929.05.11
申请人
发明人
LEPARMENTIER ROBERT-LEON-AUGUSTE
分类号
B64C11/34
主分类号
B64C11/34
代理机构
代理人
主权项
地址
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