1781712

Information

• Patent Grant
• 1781712

• References
• Source

• Patent Number

  1,781,712

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1930
  94 years ago

• CPC

  • D21B1/00 - Fibrous raw materials or their mechanical treatment
  • Y10S162/02 - Chip soaking

• US Classifications

  • 162 - Paper making and fiber liberation
  • 034 - Drying and gas or vapor contact with solids