Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mark L. Silberberg0
Date of Patent
May 26, 2009
0Patent Application Number
117551500
Date Filed
May 30, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The level with a generally u-shaped or round, rigid frame. The outer surface is comprised of a number of planar reference faces that are at different fixed angles to a spirit vial mounted in the frame. Optionally, magnets are embedded in the reference faces. Optionally, there are grooves in the reference faces.
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