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经营范围
发明名称
Aircraft propeller
摘要
申请公布号
US1881080(A)
申请公布日期
1932.10.04
申请号
US19300500088
申请日期
1930.12.04
申请人
HUBERT WILLIAM D
发明人
HUBERT WILLIAM D.
分类号
B64C11/48
主分类号
B64C11/48
代理机构
代理人
主权项
地址
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