2120689

Information

• Patent Grant
• 2120689

• References
• Source

• Patent Number

  2,120,689

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1938
  87 years ago

• CPC

  • B23G5/08 - with means for adjustment
  • Y10T408/85837 - with spring retainer
  • Y10T408/85894 - Annular wedge-collar

• US Classifications

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