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BOARD ERASER IN WHICH CHALK DUST IS COLLECTED IN A STORAGE BY ATTACHING AND DETACHING A FIRST CASE AND A SECOND CASE
BOARD ERASER IN WHICH CHALK DUST IS COLLECTED IN A STORAGE BY ATTACHING AND DETACHING A FIRST CASE AND A SECOND CASE
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机译：拆装第一个案例和第二个案例，将粉笔末中的板擦除器收集起来
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摘要
PURPOSE: A board eraser is provided to inhale the chalk dust and dust and collects in a storage by attaching and detaching a first case and a second case.;CONSTITUTION: A board eraser comprises: a case having a cloth mounted on the lower part and an intake cavity(111) and a discharge hole(121); a motor(520) installing inside the case; a switch operating the motor; a fan(540) installing inside the case and connected to the motor; and a filter installing to the lower part of the motor, and arranged between the intake cavity and discharge hole(400).;COPYRIGHT KIPO 2010
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