High-efficiency homework whiteboard with columns

The invention discloses a high-efficiency homework whiteboard with columns. The high-efficiency homework whiteboard with the columns is characterized in that the high-efficiency homework whiteboard is divided into six columns; a transparent bag is arranged at the upper end of each column and used fo...

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Bibliographic Details
Main Author ZHAO AIWEN
Format Patent
LanguageChinese
English
Published 19.12.2017
Subjects
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