US Patent 7402994 Self-cleaning lower contact
Patent 7402994 was granted and assigned to Electro Scientific Industries on July, 2008 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
August 9, 2004
Date of Patent
July 22, 2008
Patent Application Number
10916063
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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