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发明名称
Automatic variable pitch propeller
摘要
申请公布号
US2682926(A)
申请公布日期
1954.07.06
申请号
US19500150724
申请日期
1950.03.20
申请人
EVANS LAURENCE J
发明人
EVANS LAURENCE J.
分类号
B63H3/00
主分类号
B63H3/00
代理机构
代理人
主权项
地址
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