1932904

Information

• Patent Grant
• 1932904

• References
• Source

• Patent Number

  1,932,904

• Date Filed

  Not available

• Date Issued

  Tuesday, October 31, 1933
  91 years ago

• CPC

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

• US Classifications

  • 162 - Paper making and fiber liberation