2812790

Information

• Patent Grant
• 2812790

• References
• Source

• Patent Number

  2,812,790

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1957
  67 years ago

• CPC

  • D01G99/00 - Subject matter not provided for in other groups of this subclass
  • D21B1/066 - the raw material being pulp sheets
  • D21H5/2614 - Detachment of the fibres from their compressed state
  • D21H11/14 - Secondary fibres

• US Classifications

  • 144 - Woodworking
  • 241 - Solid material comminution or disintegration