US Patent 9271872 Welding helmet air flow barrier
Patent 9271872 was granted and assigned to Illinois Tool Works on March, 2016 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
February 23, 2009
0
Date of Patent
March 1, 2016
0
Patent Application Number
12390980
0
Patent Citations Received
Patent Inventor Names
Eric Sommers
0
William Joshua Becker
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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