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A device for mounting and dismounting a door to/from a doorjamb
A device for mounting and dismounting a door to/from a doorjamb
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机译:用于在门框上安装门或从门框上拆卸门的装置
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摘要
A device is disclosed which comprises basically a door lifting deck and a first class lever having its resistance end pivoted about a lever axle perpendicular to the lever, which axle is carried on the door lifting deck a predetermined distance away therefrom, having a fulcrum which consists of a truck attached to the lever and mounting at least one idle wheel, and having its power end fashioned into a handgrip.
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