( en Inventor Robert King Original Assignee King Robert Dean Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US10/191,790 Other versions US6737822B2 Google Patents US20020158606A1 - Traction motor drive system US20020158606A1 - Traction motor drive system
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