3568369

Information

• Patent Grant
• 3568369

• References
• Source

• Patent Number

  3,568,369

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1971
  54 years ago

• CPC

  • B24B9/163 - of gem stones or convex surfaces, cabochons
  • B24B17/025 - for grinding rotating workpieces (three dimensional)

• US Classifications

  • 451 - Abrading