2143105

Information

• Patent Grant
• 2143105

• References
• Source

• Patent Number

  2,143,105

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1939
  87 years ago

• CPC

  • E21B19/084 - with flexible drawing means
  • Y10T74/15 - Intermittent grip type mechanical movement
  • Y10T74/1592 - Driven band and gripper

• US Classifications

  • 074 - Machine element or mechanism
  • 173 - Tool driving or impacting