2018938

Information

• Patent Grant
• 2018938

• References
• Source

• Patent Number

  2,018,938

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1935
  89 years ago

• CPC

  • D21D1/28 - Ball or rod mills
  • D21B1/325 - de-inking devices
  • Y02W30/646 - Wet methods for dividing waste paper into small particles

• US Classifications

  • 162 - Paper making and fiber liberation