1328506

Information

• Patent Grant
• 1328506

• References
• Source

• Patent Number

  1,328,506

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1920
  105 years ago

• CPC

  • B27K3/06 - Sap stream methods
  • B27K5/06 - Softening or hardening of wood

• US Classifications

  • 162 - Paper making and fiber liberation
  • 034 - Drying and gas or vapor contact with solids
  • 428 - Stock material or miscellaneous articles
  • 530 - Chemistry: natural resins or derivatives