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发明名称
Feathering propeller
摘要
申请公布号
US3115937(A)
申请公布日期
1963.12.31
申请号
US19620230416
申请日期
1962.10.15
申请人
HARTZELL PROPELLER, INC.
发明人
BIERMANN DAVID
分类号
B64C11/38
主分类号
B64C11/38
代理机构
代理人
主权项
地址
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