1821256

Information

• Patent Grant
• 1821256

• References
• Source

• Patent Number

  1,821,256

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1931
  93 years ago

• CPC

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

• US Classifications

  • 534 - Organic compounds