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经营范围
发明名称
Controllable pitch propeller
摘要
申请公布号
GB563008(A)
申请公布日期
1944.07.26
申请号
GB19410016069
申请日期
1941.12.12
申请人
WALTER SCOTT HOOVER
发明人
分类号
B64C11/30
主分类号
B64C11/30
代理机构
代理人
主权项
地址
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