1800743

Information

• Patent Grant
• 1800743

• References
• Source

• Patent Number

  1,800,743

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1931
  94 years ago

• CPC

  • B24B13/023 - for grinding several lenses simultaneously
  • Y10S29/055 - with cutter drive
  • Y10S29/089 - Gas entrained liquid supply

• US Classifications

  • 451 - Abrading
  • 029 - Metal working