3409094

Information

• Patent Grant
• 3409094

• References
• Source

• Patent Number

  3,409,094

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1968
  56 years ago

• CPC

  • E21B25/14 - mounted on pivot transverse to core axis
  • E21B21/10 - Valve arrangements in drilling fluid circulation systems

• US Classifications

  • 175 - Boring or penetrating the earth