423550

Information

• Patent Grant
• 423550

• References
• Source

• Patent Number

  423,550

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1890
  134 years ago

• CPC

  • C09B35/227 - the tetrazo component being a derivative of a diaryl sulfide or a diaryl polysulfide

• US Classifications

  • 534 - Organic compounds