2197336

Information

• Patent Grant
• 2197336

• References
• Source

• Patent Number

  2,197,336

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1940
  84 years ago

• CPC

  • B23G5/12 - self-releasing
  • Y10T408/853 - and separate Tool setting means
  • Y10T408/8591 - Scroll plate

• US Classifications

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