English teaching card fixing device

An English teaching card fixing device comprises a long strip groove and is characterized in that lateral grooves perpendicular to each other are arranged at two ends of the long strip groove, movable vertical strips with grooves on two sides are arranged in the long strip groove, and a sucker is ar...

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Bibliographic Details
Main Author YU CHANGJUAN
Format Patent
LanguageChinese
English
Published 09.05.2012
Subjects
ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
GLOBES
PHYSICS
PLANETARIA
SEALS
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