2292581

Information

• Patent Grant
• 2292581

• References
• Source

• Patent Number

  2,292,581

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1942
  82 years ago

• CPC

  • B23G9/004 - Finishing screws
  • Y10T408/899 - Having inversely angled cutting edge

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 470 - Threaded, headed fastener, or washer making: process and apparatus