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经营范围
发明名称
Airplane propeller
摘要
申请公布号
US2436113(A)
申请公布日期
1948.02.17
申请号
US19420460759
申请日期
1942.10.05
申请人
MAIN DAVID W
发明人
MAIN DAVID W.
分类号
B64C39/00
主分类号
B64C39/00
代理机构
代理人
主权项
地址
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