1864220

Information

• Patent Grant
• 1864220

• References
• Source

• Patent Number

  1,864,220

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1932
  92 years ago

• CPC

  • D21C3/18 - with halogens or halogen-generating compounds

• US Classifications

  • 162 - Paper making and fiber liberation
  • 068 - Textiles: fluid treating apparatus