| 摘要 |
A plurality of trays are supported on bars affixed to and extending between a pair of endless carrier chains. The carrier chains are mounted on sprocket wheels which are rotated to move the carrier chains through a cabinet and past a window in the cabinet. Each of the trays is removably rotatably mounted on a corresponding one of the bars. Each of the trays has a box-like configuration with an open front facing the window, a spring-biased retainer device for retaining an item in the tray, and a guide device for maintaining the tray upright in its journey through the cabinet.
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