3813819

Information

• Patent Grant
• 3813819

• References
• Source

• Patent Number

  3,813,819

• Date Filed

  Not available

• Date Issued

  Tuesday, June 4, 1974
  50 years ago

• CPC

  • B24B19/005 - for grinding skins or similar sheets
  • C14B1/04 - using slicking, scraping, or smoothing-out cylinders or blades fixed on supports
  • C14B2700/016 - using slicking, scraping, or smoothing-out cylinders

• US Classifications

  • 451 - Abrading
  • 069 - Leather manufactures