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...
Saved in:
Main Author | |
---|---|
Format | Patent |
Language | Chinese English |
Published |
19.12.2017
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Be the first to leave a comment!