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Ventilation air-conditioner of novel shield door capable of being opened and closed mounted on subway station

Ventilation air-conditioner of novel shield door capable of being opened and closed mounted on subway station

CN
  • CN 200,968,687 Y
  • Filed: 09/14/2006
  • Issued: 10/31/2007
  • Est. Priority Date: 09/14/2006
  • Status: Active Grant
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