| 摘要 |
A squaring tool formed of a flat piece of rigid material having a primary "L " configuration, including a first horizontal blade (10) and a first vertical tongue (12), said first horizontal blade (10) and said first vertical tongue (12) lying in a common plane and intersecting at a perfect 90~ right angle. A secondary "L" shaped form is included having a second horizontal blade (4) a nd a second vertical tongue (16), with the second horizontal blade (14) and the second vertical tongue (16) also lying in a common plane and also intersecti ng at a perfect 90 ~ right angle. The second horizontal blade (14) extends from an inside edge of the first vertical tongue (12) such that all blades and tongues lie in a common plane and the second horizontal blade (14) is parall el to and spaced below the first horizontal blade (14), and the second vertical tongue (16) is parallel to and spaced form the first vertical tongue (12).</ SDOAB>
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