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US09207075B2 Multi-angle levels and plumbing methods 有权
多角度水平和管道方法

Multi-angle levels and plumbing methods
Abstract:
Multi-angle levels and plumbing methods are described. In one aspect, a multi-angle level has a body made up of a base section and a rotating section rotatably secured to the base section. A leveling mechanism is disposed on the rotating section.
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