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发明名称
Helicopter
摘要
申请公布号
US2030078(A)
申请公布日期
1936.02.11
申请号
US19340719360
申请日期
1934.04.06
申请人
VAUGHN SIDNEY P
发明人
VAUGHN SIDNEY P.
分类号
B64C27/04
主分类号
B64C27/04
代理机构
代理人
主权项
地址
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