| 摘要 |
PURPOSE:To provide a simple T square which is used by fitting to an appropriate plane. CONSTITUTION:A guide square(guide) 2 is provided on the upper part of a perpendicular square 1, both ends of which are fitted with suckers 11, 12, and fixed to a desk by sucking. A slide groove 6 of a horizontal square 5 is slid vertically by sitting astride of the guide square(guide) 2. The two squares are slid vertically and on right and left. |
