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发明名称
Controllable pitch propeller
摘要
申请公布号
US2584018(A)
申请公布日期
1952.01.29
申请号
US19470741350
申请日期
1947.04.14
申请人
HUGHES EDWARD M
发明人
HUGHES EDWARD M.
分类号
B64C11/34
主分类号
B64C11/34
代理机构
代理人
主权项
地址
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