422609

Information

• Patent Grant
• 422609

• References
• Source

• Patent Number

  422,609

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1890
  135 years ago

• CPC

  • B31F7/02 - Breaking the coating on paper or cardboard Breaking the coating on paper or cardboard

• US Classifications

  • 118 - Coating apparatus
  • 015 - Brushing, scrubbing, and general cleaning