3373825

Information

• Patent Grant
• 3373825

• References
• Source

• Patent Number

  3,373,825

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1968
  56 years ago

• CPC

  • E21B4/14 - Fluid operated hammers
  • E21B7/24 - Drilling using vibrating or oscillating means
  • E21C3/24 - directly by air, steam, or gas pressure

• US Classifications

  • 173 - Tool driving or impacting