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发明名称
Improvements in propellers with variable pitch
摘要
申请公布号
GB337324(A)
申请公布日期
1930.10.30
申请号
GB19300005673
申请日期
1930.02.20
申请人
MARIUS JEAN BAPTISTE BARBAROU
发明人
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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