3620635

Information

• Patent Grant
• 3620635

• References
• Source

• Patent Number

  3,620,635

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1971
  53 years ago

• CPC

  • B23B47/284 - Jigs for drilling rivets or bolts
  • B23B51/0426 - with centering devices
  • Y10T29/49821 - by altering or destroying work part or connector
  • Y10T29/49822 - by applying force
  • Y10T408/559 - Funnel like work-engaging surface cooperating with protuberance on work
  • Y10T408/5653 - with means to bias Tool away from work
  • Y10T408/895 - Having axial, core-receiving central portion

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 029 - Metal working