1879028

Information

• Patent Grant
• 1879028

• References
• Source

• Patent Number

  1,879,028

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1932
  92 years ago

• CPC

  • C09B9/04 - of indigoid dyes

• US Classifications

  • 548 - Organic compounds
  • 546 - Organic compounds
  • 549 - Organic compounds