1809980

Information

• Patent Grant
• 1809980

• References
• Source

• Patent Number

  1,809,980

• Date Filed

  Not available

• Date Issued

  Tuesday, June 16, 1931
  93 years ago

• CPC

  • B27K5/02 - Staining or dyeing wood Bleaching wood
  • B27K1/00 - Damping wood
  • B27K3/0221 - Pore opening
  • B27K3/08 - Impregnating by pressure
  • B27K3/20 - Compounds of alkali metals or ammonium
  • B27K5/001 - Heating

• US Classifications

  • 008 - Bleaching and dyeing
  • 034 - Drying and gas or vapor contact with solids