Multifunctional drawing rule

The utility model relates to a multi-purpose drawing ruler, which belongs to the technical field of stationery fabrication. The utility model comprises a main ruler and a second ruler. A semicircle protractor is arranged on the main ruler, a rotary shaft is arranged at the center of the semicircle p...

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Bibliographic Details
Main Author HONGLAN,XU GUO
Format Patent
LanguageEnglish
Published 21.03.2007
Subjects
ACCESSORIES FOR WRITING OR DRAWING
ARTICLES FOR WRITING OR DRAWING UPON
BUREAU ACCESSORIES
PERFORMING OPERATIONS
TRANSPORTING
WRITING OR DRAWING IMPLEMENTS
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