3619349

Information

• Patent Grant
• 3619349

• References
• Source

• Patent Number

  3,619,349

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1971
  53 years ago

• CPC

  • D21C9/123 - with Cl2O

• US Classifications

  • 162 - Paper making and fiber liberation
  • 008 - Bleaching and dyeing