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发明名称
Variable pitch propeller control
摘要
申请公布号
US2342665(A)
申请公布日期
1944.02.29
申请号
US19420459786
申请日期
1942.09.26
申请人
HAMMOND
发明人
JR. JOHN HAYS HAMMOND,;COLLEY GEORGE A.
分类号
B63H3/10
主分类号
B63H3/10
代理机构
代理人
主权项
地址
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