2480879

Information

• Patent Grant
• 2480879

• References
• Source

• Patent Number

  2,480,879

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1949
  75 years ago

• CPC

  • E21B6/08 - Separate drives for percussion and rotation
  • E21C3/18 - directly by a piston of an internal-combustion engine

• US Classifications

  • 173 - Tool driving or impacting
  • 123 - Internal-combustion engines