3660427

Information

• Patent Grant
• 3660427

• References
• Source

• Patent Number

  3,660,427

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1972
  52 years ago

• CPC

  • C09B62/537 - Porphines Azaporphines

• US Classifications

  • 540 - Organic compounds
  • 008 - Bleaching and dyeing