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发明名称
Hélice à pas variable
摘要
申请公布号
FR781769(A)
申请公布日期
1935.05.22
申请号
FRD781769
申请日期
1934.02.12
申请人
发明人
CHARLES MAURICE
分类号
B64C11/36
主分类号
B64C11/36
代理机构
代理人
主权项
地址
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