US Patent 8443932 Working machine
Patent 8443932 was granted and assigned to Hitachi on May, 2013 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
September 8, 2011
Date of Patent
May 21, 2013
Patent Application Number
13228004
Patent Citations Received
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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