3626436

Information

• Patent Grant
• 3626436

• References
• Source

• Patent Number

  3,626,436

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1971
  53 years ago

• CPC

  • B24B3/32 - for thinning the point
  • B24B3/30 - and rotating the drill about its own axis

• US Classifications

  • 451 - Abrading