The apparatus of claim 19, wherein the bracket is configured to pivot the handle in a third degree of freedom with respect to the first cross beam.
该仪器索赔19个，其中支架配置为支点的处理在第三自由度方面的第一次横梁。
2
Coleman enclosed track jib cranes are trussed booms mounted on a pivot to allow for boom rotation. The pivot location can be on a floor mounted pedestal, ceiling mounted pedestal, or a wall bracket.