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发明名称
Hélice à pas auto-variable rationnel
摘要
申请公布号
FR828952(A)
申请公布日期
1938.06.07
申请号
FRD828952
申请日期
1937.11.10
申请人
发明人
MARC
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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