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经营范围
发明名称
Hélice à pas variable et reversible
摘要
申请公布号
FR809871(A)
申请公布日期
1937.03.11
申请号
FRD809871
申请日期
1935.10.12
申请人
发明人
OUDET GUSTAVE, HENRI
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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