2389537

Information

• Patent Grant
• 2389537

• References
• Source

• Patent Number

  2,389,537

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1945
  79 years ago

• CPC

  • G04D3/0058 - for bearing jewels
  • B24B5/48 - for grinding walls of very fine holes

• US Classifications

  • 451 - Abrading
  • 125 - Stone working
  • 968 - Horology