2885184

Information

• Patent Grant
• 2885184

• References
• Source

• Patent Number

  2,885,184

• Date Filed

  Not available

• Date Issued

  Tuesday, May 5, 1959
  65 years ago

• CPC

  • E21B7/16 - Applying separate balls or pellets by the pressure of the drill, so-called shot-drilling

• US Classifications

  • 175 - Boring or penetrating the earth