US Patent 7857071 Grade indicator for excavation operations
Patent 7857071 was granted and assigned to Topcon Positioning Systems on December, 2010 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
August 5, 2005
0
Date of Patent
December 28, 2010
0
Patent Application Number
11198611
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Patent Citations Received
Patent Inventor Names
Richard John Jackson
0
Steven Daniel McCain
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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