Arc table top projection copybook copying and calligraphy exercising device

• Main Author: XUE YINGDONG
• Format: Patent
• Language: English
• Published: 12.08.2015
• 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

The invention relates to the technical field of desk furniture for studying, and provides an arc table top projection copybook copying and calligraphy exercising device. The device is characterized in that the table top is a cuboid, and four edges of a top surface of the cuboid are circular arc-shap...