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发明名称
Davit control mechanism
摘要
申请公布号
US2622251(A)
申请公布日期
1952.12.23
申请号
US19490096326
申请日期
1949.05.31
申请人
DODGSON DAVID E
发明人
DODGSON DAVID E.
分类号
B63B23/04
主分类号
B63B23/04
代理机构
代理人
主权项
地址
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