Chalk box for education and teaching convenient to clearance

The utility model provides a chalk box for education and teaching convenient to clearance relates to the teaching equipment field. This chalk box for education and teaching convenient to clearance, including work box and chalk placing box, chalk placing box's bottom is run through the work box...

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Bibliographic Details
Main Author LUO JINGLING
Format Patent
LanguageChinese
English
Published 19.10.2018
Subjects
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