3619617

Information

• Patent Grant
• 3619617

• References
• Source

• Patent Number

  3,619,617

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1971
  53 years ago

• CPC

  • B24B17/04 - involving optical auxiliary means

• US Classifications

  • 250 - Radiant energy
  • 356 - Optics: measuring and testing
  • 451 - Abrading