3290828

Information

• Patent Grant
• 3290828

• References
• Source

• Patent Number

  3,290,828

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1966
  58 years ago

• CPC

  • B24B19/006 - for grinding hollow glassware, bottles
  • B24B13/023 - for grinding several lenses simultaneously
  • B24B19/26 - for grinding workpieces with arcuate surfaces

• US Classifications

  • 451 - Abrading