| 摘要 |
PURPOSE: An automatic pencil with roller compasses is provided to maximize the convenience of use and carrying thereof by endowing the automatic pencil with ruler and compasses functions. CONSTITUTION: The automatic pencil is provided with roller compasses, which can function both rollers and compasses. This is manufactured by coupling one surface of a conventional automatic pencil with a ruler, and coupling a center shaft rod of the compasses to the inner surface of a cap. The outer contour of the automatic pencil can be freely determined as polygonal shapes as well as circular shape.
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