Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 10, 2006
Patent Application Number
10790148
Date Filed
March 2, 2004
Patent Primary Examiner
Patent abstract
A spirit level comprising a body having a level face for setting a surface, at least one bubble vial mounted in the body, the bubble vial having a longitudinal axis generally perpendicular to the level face, and an optical transfer element fixed to the body which transfers an image of the bubble vial to a viewing plane generally parallel to the level face.
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