2491538

Information

• Patent Grant
• 2491538

• References
• Source

• Patent Number

  2,491,538

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1949
  75 years ago

• CPC

  • B23B3/24 - the tools of which do not perform a radial movement Rotary tool heads therefor
  • Y10T408/5665 - Work-engaging surface parallel to tool-axis

• US Classifications

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