Invention Grant
US08220780B2 Assembly for setting, removing and maintaining doors 失效
安装,拆卸和维修门的组装

Assembly for setting, removing and maintaining doors
Abstract:
The present invention relates to an assembly having in combination an apparatus and a smooth and rigid plane on which the apparatus moves. The assembly allows, when activated by the foot of the user acting as a drive and directive force, the door to be raised and movements from bottom to top, front to back, right to left and vice versa to be executed, while the hands of the user no longer carry the load and are free to intervene.
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