2125013

Information

• Patent Grant
• 2125013

• References
• Source

• Patent Number

  2,125,013

• Date Filed

  Not available

• Date Issued

  Tuesday, July 26, 1938
  86 years ago

• CPC

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

• US Classifications

  • 173 - Tool driving or impacting
  • 092 - Expansible chamber devices
  • 123 - Internal-combustion engines