| 摘要 |
REUSABLE DISPLAY SIGN OR CARD HAVING ALPHANUMERIC INFORMATION A card for exhibiting and displaying alphanumeric information, such as a pricing sign for retail use, is provided. Generally the card is reusable. At least a portion of the face of the card has a background formed thereon in a dark colour, and a plurality of multisegmented alphanumeric presentation display digit. Each of the display digits has at least seven bar segments so arranged as to form the digit "8". Various alphanumeric digits or letters can be formed by changing the colour of none or some of the bar segments of each display digit, so as to change its value, using a marker having an ink which is substantially the same colour as the colour of the background. The changed displays thereby present alphanumeric data, most usually pricing data, as desired. The card may be reused by wiping the changed display digits with a dampened wiping means which may carry water or a specific solvent, depending on the nature of the ink that has been used in the marker when the display digit was first changed. The display cards may be very economically produced and provided in large quantities to major retailers as well as to small independent retailers. The cards may also be used such as for inventory and stock control, and the like. |
