US Patent 7980337 Stair climbing device
Patent 7980337 was granted and assigned to Nanyang Polytechnic on July, 2011 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
March 16, 2007
0
Date of Patent
July 19, 2011
0
Patent Application Number
12531491
0
Patent Citations Received
Patent Inventor Names
Chin Sai Wong
0
Kannappan@Suresh A/L Lynkaran
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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