| 摘要 |
The holder has a base which can be rotatably attached to at least one chair leg, where the chair leg can be a leg of a star-based chair, a leg of a four-legged chair, an upright of a wheel chair, and analogous members of other chairs. An adjustable height arm is rotatably attached to the base, and a deck for holding a keyboard is rotatably attached to the arm. The holder can be adjusted easily in height, distance from the person using the holder, and angle of the deck, and the holder can easily swing away for easy access to the chair.
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