Novel teaching compass

The utility model relates to a novel teaching compass which comprises a chalk clamp 1, a guide rod 2, reverse scales 3, a locking screw 4, a rotating support 5, a rubber sucker 6 and a chalk protecting device 7. The novel teaching compass is characterized in that the chalk clamp 1 is fixedly connect...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHAO GUOXIN, ZHAO JIHU
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES FOR WRITING OR DRAWING ARTICLES FOR WRITING OR DRAWING UPON BUREAU ACCESSORIES PERFORMING OPERATIONS TRANSPORTING WRITING OR DRAWING IMPLEMENTS
Online-Zugang:	Volltext bestellen
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