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经营范围
发明名称
Aeroplane
摘要
申请公布号
US1757879(A)
申请公布日期
1930.05.06
申请号
US19280318049
申请日期
1928.11.08
申请人
RYDBERG JOHN T
发明人
RYDBERG JOHN T.
分类号
B64D15/02
主分类号
B64D15/02
代理机构
代理人
主权项
地址
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