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For identifying the apparatus and method of the control mode of voltage trip formula or current-release formula switchgear

For identifying the apparatus and method of the control mode of voltage trip formula or current-release formula switchgear

  • CN 101,681,742 B
  • Filed: 04/12/2008
  • Issued: 03/02/2016
  • Est. Priority Date: 06/04/2007
  • Status: Active Grant
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