US Patent 7938231 Elevator apparatus having independent second brake control
Is a
Date Filed
July 27, 2006
0
Date of Patent
May 10, 2011
0
Patent Application Number
12064394
0
Patent Citations Received
Patent Inventor Names
Hiroshi Kigawa
0
Rikio Kondo
0
Takaharu Ueda
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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