2439839

Information

• Patent Grant
• 2439839

• References
• Source

• Patent Number

  2,439,839

• Date Filed

  Not available

• Date Issued

  Tuesday, April 20, 1948
  76 years ago

• CPC

  • G04D3/0002 - for mechanical working other than with a lathe
  • B24D15/06 - specially designed for sharpening cutting edges

• US Classifications

  • 451 - Abrading
  • 968 - Horology