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发明名称
Propeller for aeroplanes
摘要
申请公布号
US1797068(A)
申请公布日期
1931.03.17
申请号
US19270201879
申请日期
1927.06.27
申请人
ALEXANDER BOCKSRUKER
发明人
BOCKSRUKER ALEXANDER
分类号
B64C11/00
主分类号
B64C11/00
代理机构
代理人
主权项
地址
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