Invention Grant
US09228832B2 Level 有权
水平

Level
Abstract:
A level includes a first planar surface having a first longitudinal edge and a second longitudinal edge and a second planar surface having a third longitudinal edge and a fourth longitudinal edge. The first longitudinal edge and the third longitudinal edge define a first side plane and the second longitudinal edge and the fourth longitudinal edge define a second side plane. A vial has a long axis and contains a liquid and a gas bubble. A web is coupled to the first and second planar surfaces such that the first and second planar surfaces are spaced apart from and parallel to each other. The web includes a first side surface on the first plane and a second side surface. A first recess pattern is arranged to engage a first electrical component and a second recess pattern is arranged to engage a second electrical component.
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