Portable universal teaching aid for education and teaching
The utility model discloses a portable general teaching aid for education and teaching, and relates to the technical field of teaching aids. The device comprises a main body, the main body comprises a first display board and a second display board, and the first display board is rotatably connected...
Saved in:
Main Authors | , , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
09.11.2021
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Be the first to leave a comment!