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经营范围
发明名称
Reversible propeller
摘要
申请公布号
US2642946(A)
申请公布日期
1953.06.23
申请号
US19470764644
申请日期
1947.07.30
申请人
VICKERS-ARMSTRONGS LIMITED
发明人
WOOD GEORGE
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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