Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 14, 2013
Patent Application Number
12794419
Date Filed
June 4, 2010
Patent Citations Received
Patent Primary Examiner
Patent abstract
An apparatus is disclosed that includes a ditch liner formed with two opposing walls. A plurality of friction control corrugations is formed in both of the two opposing walls. The apparatus also includes one or more subsurface aprons.
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