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Slide or PHOTO PLATE OF SUCH DISCUSSION UNIT.
Slide or PHOTO PLATE OF SUCH DISCUSSION UNIT.
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机译:幻灯片或照片讨论板。
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摘要
A picture viewer having a housing to confine a pile of pictures, a slider to be withdrawn and returned to the housing, a viewing window, a pressure plate confronting the window, springs urging the plate toward the window, a retention strip to engage and strip off the picture at the end of the pile upon withdrawal of the slides, a separator strip to retain the pile as the one picture is stripped off, a slidable button on the housing to disable the springs and draw the plate away from the window, and a confining ledge on the slider also drawing the plate away from the window and independently of the slidable button.
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