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经营范围
发明名称
Flying machine
摘要
申请公布号
US1831139(A)
申请公布日期
1931.11.10
申请号
US19300434574
申请日期
1930.03.10
申请人
WILLIAM ROBERTS
发明人
ROBERTS WILLIAM
分类号
B64C3/38
主分类号
B64C3/38
代理机构
代理人
主权项
地址
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