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发明名称
Improvements in air screw propellers
摘要
申请公布号
GB460332(A)
申请公布日期
1937.01.26
申请号
GB19350034209
申请日期
1935.12.10
申请人
SOCIETA ANONIMA ALFA ROMEO
发明人
分类号
B64C11/34
主分类号
B64C11/34
代理机构
代理人
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地址
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