Mathematical teaching aid

The utility model relates to a mathematical teaching aid. Including supporting seat, three thin graduated flask and a bracing piece, the top of locating the supporting seat is erect to the bracing piece, and the bracing piece top is equipped with a horizontally horizontal pole, is equipped with thre...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	HOU YANNA
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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