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经营范围
发明名称
Propeller
摘要
申请公布号
US1886891(A)
申请公布日期
1932.11.08
申请号
US19300469531
申请日期
1930.07.21
申请人
MARTENS FREDERICK J;THOMPSON CLINTON O
发明人
MARTENS FREDERICK J.;THOMPSON CLINTON O.
分类号
B64C11/42
主分类号
B64C11/42
代理机构
代理人
主权项
地址
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