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Why You Should Install a Hook Lock A hook lock will prevent thieves from stealing the contents of your van by securing it to the door of your vehicle. They also decrease the chance of accidents on the job site caused by faulty spring latches on standard sling hooks that fail to close when not in use. This paper uses numerical continuation and bifurcation theories to analyze the motion characteristics of the mechanism for hook locks. The influence of the landing gear weight and the spring's lo
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