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1.发明授权Multi-section lift-lock devices for closing open-top spaces such as shipholds, sheds, vehicles, etc., by means of panels movable on runways 失效用于通过在跑道上移动的面板来关闭诸如船舶，棚屋，车辆等敞开式空间的多段提升锁装置
公开(公告)号：US3090342A
公开(公告)日：1963-05-21
申请号：US8563261
申请日：1961-01-30
Applicant: INTERNAT MACGREGOR ORGANIZATIO
Inventor： HENRI KUMMERMAN , JAN VLIEGER
IPC: B63B19/24
CPC classification number: B63B19/24
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