Set square capable of drawing circle and square with same area

The utility model belongs to the technical field of drawing instruments, and particularly relates to a set square capable of drawing a circle and a square with the same area. Problems of complex steps and inconvenience in operation exist in the prior art. In order to overcome the defects existing in...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	DANG YONGCHENG
Format:	Patent
Sprache:	chi ; 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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