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发明名称
Helicopter
摘要
申请公布号
US2004310(A)
申请公布日期
1935.06.11
申请号
US19330677899
申请日期
1933.06.27
申请人
CLAUSEN THORVALD T
发明人
CLAUSEN THORVALD T.
分类号
B64C27/28
主分类号
B64C27/28
代理机构
代理人
主权项
地址
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