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经营范围
发明名称
Airplane
摘要
申请公布号
US1989291(A)
申请公布日期
1935.01.29
申请号
US19310558067
申请日期
1931.08.19
申请人
PREWITT RICHARD H
发明人
PREWITT RICHARD H.
分类号
B64C3/54
主分类号
B64C3/54
代理机构
代理人
主权项
地址
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