2951683

Information

• Patent Grant
• 2951683

• References
• Source

• Patent Number

  2,951,683

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1960
  64 years ago

• CPC

  • E21B10/62 - characterised by parts
  • B23B51/0466 - with exchangeable cutting inserts
  • E21B10/06 - Roller core bits
  • E21B10/12 - with discs cutters
  • E21B10/48 - the bit being of core type
  • E21B10/56 - Button type inserts
  • B23B2205/02 - Fixation using an elastically deformable clamping member
  • B23B2222/28 - Details of hard metal

• US Classifications

  • 175 - Boring or penetrating the earth