| 摘要 |
<p>An advertisement pillar for use on public streets, squares or in buildings for displaying advertising cards which can be dispensed in blank form and thereafter reinserted into the device for subsequent display. The pillar is comprised of an outer transparent housing in which a revolving display unit is positioned. The advertising cards are removably attached to mounting panels which can, if desired, be transparent and provided with a rear light source. --</p> |
