3815294

Information

• Patent Grant
• 3815294

• References
• Source

• Patent Number

  3,815,294

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1974
  50 years ago

• CPC

  • B24B13/0057 - Deblocking of lenses
  • B24B13/0012 - for multifocal lenses
  • B24B13/02 - by means of tools with abrading surfaces corresponding in shape with the lenses to be made

• US Classifications

  • 451 - Abrading