1630818

Information

• Patent Grant
• 1630818

• References
• Source

• Patent Number

  1,630,818

• Date Filed

  Not available

• Date Issued

  Tuesday, May 31, 1927
  97 years ago

• CPC

  • C09B49/02 - from nitro compounds of the benzene, naphthalene or anthracene series

• US Classifications

  • 008 - Bleaching and dyeing