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经营范围
发明名称
Device for automatic braking in lowering of objects, such as boat tackles
摘要
申请公布号
US2386137(A)
申请公布日期
1945.10.02
申请号
US19430472144
申请日期
1943.01.12
申请人
JOHN OLSSON;EMIL LUNDIN NILS
发明人
OLSSON JOHN;LUNDIN NILS EMIL
分类号
B63B23/18
主分类号
B63B23/18
代理机构
代理人
主权项
地址
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