| 摘要 |
PROBLEM TO BE SOLVED: To provide a drawing board with an anchoring means on its corner to which an L-shaped scale is rotatably anchored, supporting a parallel ruler, one of various rulers or one side of a template at a predetermined angle, thereby clamping a drafting paper on it, and also having portability. SOLUTION: The drafting board with the L-shaped scale includes the anchoring means whose nut is disposed into a through-hole formed on one corner of the drafting board, enabling mounting of the L-shaped scale on the drafting board. A bolt is anchored to the nut disposed on the drafting board via the L-shaped scale. By operating the bolt to tighten or release, the L-shaped scale being rotatable and maintained at a predetermined angle, the drafting paper can be clamped. COPYRIGHT: (C)2008,JPO&INPIT
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