2199576

Information

• Patent Grant
• 2199576

• References
• Source

• Patent Number

  2,199,576

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1940
  84 years ago

• CPC

  • C09B43/08 - by reduction
  • C09B33/28 - Tetrazo dyes of the type A->B->K<-C<-D

• US Classifications

  • 534 - Organic compounds