US Patent 7484322 Digging and backfill apparatus
Patent 7484322 was granted and assigned to Mclaughlin Group Inc. on February, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
October 22, 2004
Date of Patent
February 3, 2009
Patent Application Number
10971455
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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