BLACKBOARD ERASER FOR CLEANING BLACKBOARD STAND IN WHICH A UNIT FOR CLEANING CHALK DUST IS ATTACHED

摘要

PURPOSE: A blackboard eraser for cleaning blackboard stand is provided to easily and conveniently clean chalk dust by cleaning dust because of a unit for cleaning chalk dust.;CONSTITUTION: A blackboard eraser for cleaning blackboard stand comprises rubber(1), a roulette(2), an eraser cover(3), an eraser(4), and an eraser case(5). The rubber has cylindrical shape. The roulette is formed from plastic or synthetic resin. The eraser cover consists of plastic material. The eraser consists of sponge material. The eraser case consists of plastic or synthetic resin.;COPYRIGHT KIPO 2012