Teaching auxiliary tool

The invention is suitable for the field of teaching auxiliary accessories, and relates to a teaching auxiliary tool which comprises a miniature fan arranged on a first supporting rod; a supporting ring is arranged at the upper end of the first supporting rod and is constructed according to the conto...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SHAN XINMEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING ALARM SYSTEMS APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE BLASTING CABINETS COFFEE MILLS CRYPTOGRAPHY DESKS DIAGRAMS DISPLAY DOMESTIC ARTICLES OR APPLIANCES DRAWERS EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES FURNITURE GENERAL DETAILS OF FURNITURE GLOBES HEATING HUMAN NECESSITIES LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS OFFICE FURNITURE ORDER TELEGRAPHS PHYSICS PLANETARIA POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SEALS SIGNALLING SIGNALLING OR CALLING SYSTEMS SPICE MILLS SUCTION CLEANERS IN GENERAL TABLES WEAPONS
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