Abstract: A demountable device bracket having a bracket receiver tube adapted to be fixed to a surface, and defining an upwardly-facing opening having an opening shape. There is a bracket assembly with a bracket mounting bar having generally the shape of the opening in the bracket receiver tube, and sized to slide down into the upwardly-facing opening of the bracket receiver tube. There is also a hanger-receiving tube extending at an angle from the exposed portion of the mounting bar, defining an opening that can receive a pole or bar, and a lifting bar extending downward from the hanger-receiving tube. The bracket mounting bar can be slid into the bracket receiver tube, to allow a pole or bar that is inserted into the hanger-receiving tube and that carries an object such as a flag, banner or birdfeeder, for example, to be removably held above the ground.