作者: Clarence G Machlan , Barron Jacques Gulliver
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摘要: An adjusting assembly for mounting a supporting tray to chair using one or more arm assemblies. The proximal end portion of bar is secured such that the disposed substantially horizontally. A vertically support mounted from distal bar, and may be rotatable about vertical axis, if desired, facilitate entering exiting chair. If only used, first an supported articulation pivot assembly, pivotally second assembly. two assemblies are utilized, each has housing with portions. One articulating another movement pivotal axis. other portions interconnected relative intermediate axes. Locking means operatively interact secure: (1) selected position (2) its axis; and, (3) respect