| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide inside and outside-switchable multistepped whiteboards (blackboards or the like). Ž<P>SOLUTION: A product of the multistepped whiteboards (blackboards or the like) enabling a use of double surfaces is manufactured by mounting switch handles such as dials, sliders or the like on the side surface of the base to enable the inside/outside switch. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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