2618241

Information

• Patent Grant
• 2618241

• References
• Source

• Patent Number

  2,618,241

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1952
  72 years ago

• CPC

  • E21B6/08 - Separate drives for percussion and rotation
  • Y10T29/4583 - Hammer

• US Classifications

  • 173 - Tool driving or impacting
  • 029 - Metal working
  • 091 - Motors: expansible chamber type