516756

Information

• Patent Grant
• 516756

• References
• Source

• Patent Number

  516,756

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1894
  130 years ago

• CPC

  • C09B33/26 - Tetrazo dyes of the type A->B->C->K<-D

• US Classifications

  • 534 - Organic compounds