Multi-purpose ruler

A multi-purpose ruler with various drawing functions is formed by that graphometer scribing lines are added on a common ruler, so that not only the functions of a common ruler, such as drawing lines and measuring length, can be achieved, but also the graphometer scribing lines can be used for drawin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SHAO XUEYI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES FOR WRITING OR DRAWING ARTICLES FOR WRITING OR DRAWING UPON BUREAU ACCESSORIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING WRITING OR DRAWING IMPLEMENTS
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Beschreibung
Zusammenfassung:	A multi-purpose ruler with various drawing functions is formed by that graphometer scribing lines are added on a common ruler, so that not only the functions of a common ruler, such as drawing lines and measuring length, can be achieved, but also the graphometer scribing lines can be used for drawing and measuring angles, drawing regular polygons and replacing a set square and a graphometer; series small holes attached can be used for replacing a pair of compass for drawing circles, and replacing an ellipsograph for drawing ellipses; and equidistant scribing lines attached can be used for drawing parallel lines. The multi-purpose ruler integrates the functions of a ruler, a set square, a graphometer and a pair of compasses, and not only is convenient but also saves social resource.