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发明名称
Pales d'hélice
摘要
申请公布号
FR848781(A)
申请公布日期
1939.11.07
申请号
FRD848781
申请日期
1939.01.12
申请人
UNITED AIRCRAFT CORPORATION
发明人
分类号
B64C11/24
主分类号
B64C11/24
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代理人
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