3021538

Information

• Patent Grant
• 3021538

• References
• Source

• Patent Number

  3,021,538

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1962
  63 years ago

• CPC

  • B23B27/065 - Thread-turning tools
  • B23G5/06 - Taps
  • B23B2270/16 - Constructions comprising three or more similar components
  • Y10T408/9045 - and different root circles
  • Y10T408/90467 - and relieved cutting edge

• US Classifications

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