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经营范围
发明名称
Variable pitch propeller
摘要
申请公布号
US2416516(A)
申请公布日期
1947.02.25
申请号
US19390292148
申请日期
1939.08.26
申请人
EVEREL PROPELLER CORPORATION
发明人
EVERTS WALTER W.
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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