Teaching appliance for improving teaching convenience

The utility model discloses a teaching aid for improving teaching convenience. The utility model relates to a teaching aid for improving teaching convenience. The teaching aid comprises a polyhedral box body, an ink box, a static sheet and a control chip. Wherein different printing surfaces with pre...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LI SHUIXIU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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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