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发明名称
Hélice à pas variable
摘要
申请公布号
FR719933(A)
申请公布日期
1932.02.12
申请号
FRD719933
申请日期
1931.07.10
申请人
ECLIPSE AVIATION CORPORATION
发明人
分类号
B64C11/34
主分类号
B64C11/34
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