发明申请
US20120330319A1 ALIGNMENT GUIDE WITH SPIRIT LEVEL 审中-公开
对准指南与精神水平

ALIGNMENT GUIDE WITH SPIRIT LEVEL
摘要:
An alignment guide is described that includes a shaft having a longitudinal axis and a housing attachable to the shaft and rotatable about a first axis that is substantially perpendicular to the longitudinal axis. A guide arm the extends from the housing at a predetermined angle along a second axis. A spirit level is connected to the housing on a plane aligned with the predetermined angle.
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