3444652

Information

• Patent Grant
• 3444652

• References
• Source

• Patent Number

  3,444,652

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1969
  55 years ago

• CPC

  • B24B13/043 - using cup-type grinding wheels
  • B24B13/02 - by means of tools with abrading surfaces corresponding in shape with the lenses to be made

• US Classifications

  • 451 - Abrading
  • 065 - Glass manufacturing