| 摘要 |
An angularly adjustable keyboard support bracket includes a mounting rack attached to a desktop, a movable arm coupled with the mounting rack through a pin, and a bracing rack coupled with another end of the movable arm through another pin for holding a tray. A rotary mechanism is located between the bracing rack and the tray to enable the tray to swivel to the left side and the right side for a selected angle relative to the bracing rack to provide users with a desired operating angle.
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