172851

Information

• Patent Grant
• 172851

• References
• Source

• Patent Number

  172,851

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1876
  149 years ago

• CPC

  • B23G5/12 - self-releasing
  • Y10T82/205 - having swinging feed nut and tool bar
  • Y10T408/852 - with Tool releasing trigger

• US Classifications

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