Multipurpose drawing rule

The utility model relates to a multi-purpose drawing ruler, which belongs to the field of stationery. The utility model comprises a knife, a semicircle plate, a ruler plate, a curved plate and a rivet shaft. The semicircle plate is integrated with the ruler plate and the curved plate, a narrow slot...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: ZHIZHENG,XU LIU
Format: Patent
Sprache:eng
Schlagworte:
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