1733458

Information

• Patent Grant
• 1733458

• References
• Source

• Patent Number

  1,733,458

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1929
  95 years ago

• CPC

  • C09B7/10 - Bis-thionapthene indigos
  • C07D333/64 - Oxygen atoms
  • C09B7/06 - Indone-thionapthene indigos

• US Classifications

  • 549 - Organic compounds
  • 546 - Organic compounds