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经营范围
发明名称
Aircraft propeller
摘要
申请公布号
US1835849(A)
申请公布日期
1931.12.08
申请号
US19300432112
申请日期
1930.02.28
申请人
COVEY FELIX M
发明人
COVEY FELIX M.
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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