2019554

Information

• Patent Grant
• 2019554

• References
• Source

• Patent Number

  2,019,554

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1935
  89 years ago

• CPC

  • C01F7/24 - with nitric acid or nitrogen oxides

• US Classifications

  • 423 - Chemistry of inorganic compounds