A device used to ensure greater safety when the top of a ship's hatch is closed.

• 1. 由可收起的销确保安全的用于通过螺固关闭容器的关闭设备 [P] . 中国专利： CN107531373B . 2019.07.23
• 2. 由可收起的销确保安全的用于通过螺固关闭容器的关闭设备 [P] . 中国专利： CN107531373A . 2018-01-02
• 3. Such a device ensuring the stoppage of the trains to a signal which is closed. [P] . 法国专利： FR447534A . 1913-01-08

  机译： 这样的装置确保列车停止到关闭的信号。

• 4. device for reference and blocking of cables and chains shipyards, with movements in hydraulic control to ensure a greater level of safety on board ships in general and for an easier installation directly on all decks of ship [P] . ITAN20040016A1 . 2004-06-30

  机译： 电缆和链条船厂的参考和锁定装置，具有液压控制功能，可确保总体上船上的安全性更高，并且更容易直接安装在所有船甲板上

• 5. Ship's cargo hatch securing guide - has upward pointing limiting wedge section around hatch opening and wedge-shaped stop block [P] . 德国专利： DE4141631A1 . 1993-06-24

  机译： 船舶的货物舱口固定导板-在舱口开口附近具有向上指向的限制楔形部分和楔形止动块

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• 6. Role of Man in Ensuring the Safety of Nuclear Devices [R] . Bilek, M. 1983

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