1452805

Information

• Patent Grant
• 1452805

• References
• Source

• Patent Number

  1,452,805

• Date Filed

  Not available

• Date Issued

  Tuesday, April 24, 1923
  102 years ago

• CPC

  • C09B49/06 - from azines, oxazines, thiazines or thiazoles

• US Classifications

  • 548 - Organic compounds
  • 544 - Organic compounds
  • 552 - Organic compounds