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发明名称
Compound helicopter with shrouded tail propeller
摘要
申请公布号
US3241791(A)
申请公布日期
1966.03.22
申请号
US19640357197
申请日期
1964.04.03
申请人
PIASECKI FRANK N
发明人
PIASECKI FRANK N.
分类号
B64C27/82
主分类号
B64C27/82
代理机构
代理人
主权项
地址
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