3910357

Information

• Patent Grant
• 3910357

• References
• Source

• Patent Number

  3,910,357

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1975
  49 years ago

• CPC

  • E21C3/04 - Hammer drilling machines in which the tool is hit by an impulse member

• US Classifications

  • 173 - Tool driving or impacting
  • 299 - Mining or in situ disintegration of hard material