2808885

Information

• Patent Grant
• 2808885

• References
• Source

• Patent Number

  2,808,885

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1957
  68 years ago

• CPC

  • B23B49/04 - Devices for boring or drilling centre holes in workpieces
  • B21J9/04 - Piercing presses
  • Y10T82/2514 - with work feeder or remover
  • Y10T408/3796 - with interconnected means to simultaneously feed tools

• US Classifications

  • 072 - Metal deforming
  • 082 - Turning
  • 100 - Presses
  • 269 - Work holders
  • 408 - Cutting by use of rotating axially moving tool
  • 470 - Threaded, headed fastener, or washer making: process and apparatus