1935580

Information

• Patent Grant
• 1935580

• References
• Source

• Patent Number

  1,935,580

• Date Filed

  Not available

• Date Issued

  Tuesday, November 14, 1933
  91 years ago

• CPC

  • D21C9/083 - with inorganic compounds
  • Y10S162/05 - Alpha cellulose

• US Classifications

  • 162 - Paper making and fiber liberation