1970148

Information

• Patent Grant
• 1970148

• References
• Source

• Patent Number

  1,970,148

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1934
  91 years ago

• CPC

  • D21C3/18 - with halogens or halogen-generating compounds
  • D21C3/24 - Continuous processes
  • D21C9/10 - Bleaching; Apparatus therefor
  • D21C9/1026 - Other features in bleaching processes

• US Classifications

  • 162 - Paper making and fiber liberation