The pins are vertically movable relative to the horizontal plate between a lower position in which the bottom of the pin heads abut against the upper surface of the plate, and an upper position in which the top of the pin heads abut against the lower surface of a transparent sheet of material spaced at a predetermined distance above the apertured plate. The heads of the pins are larger than the diameters of the apertures to assure that the pins do not fall through the apertures. The plate is supported in a substantially horizontally fixed position, and each of the apertures defined therein are adapted to receive a pin in a substantially vertical orientation. B44F7/00- Designs imitating three-dimensional effectsĪ pin screen includes a plate having a plurality of closely spaced small apertures.A47B- TABLES DESKS OFFICE FURNITURE CABINETS DRAWERS GENERAL DETAILS OF FURNITURE.A47- FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCTION CLEANERS IN GENERAL. ![]()
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