US Patent 7448471 Elevator installation
Patent 7448471 was granted and assigned to Thyssenkrupp Elevator on November, 2008 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
August 31, 2007
Date of Patent
November 11, 2008
Patent Application Number
11897923
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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