1507993

Information

• Patent Grant
• 1507993

• References
• Source

• Patent Number

  1,507,993

• Date Filed

  Not available

• Date Issued

  Tuesday, September 9, 1924
  100 years ago

• CPC

  • C01F7/24 - with nitric acid or nitrogen oxides

• US Classifications

  • 423 - Chemistry of inorganic compounds