2812238

Information

• Patent Grant
• 2812238

• References
• Source

• Patent Number

  2,812,238

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1957
  67 years ago

• CPC

  • C01B21/1427 - by reduction of nitrogen oxides or nitrites with bisulfite or sulfur dioxide

• US Classifications

  • 423 - Chemistry of inorganic compounds