| 摘要 |
The casing device has an inwardly recessed tray in a body member for the placement of a laser disc. A hub in the center of the tray protrudes from the center hole of the laser disc. Along the peripheral wall of the tray, at least a resilient fastening element is provided which has an opened position to make the tray fully accessible for placing and removing a laser disc, and a closed position where the fastening element is bended toward the circular hub to be on top of the rim of the laser disc for confining the laser disc in the tray.
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