1689768

Information

• Patent Grant
• 1689768

• References
• Source

• Patent Number

  1,689,768

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1928
  96 years ago

• CPC

  • B23G5/12 - self-releasing
  • Y10T408/552 - Adapted to engage work at tool-axis
  • Y10T408/85915 - with means to rotate scroll

• US Classifications

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