1347587

Information

• Patent Grant
• 1347587

• References
• Source

• Patent Number

  1,347,587

• Date Filed

  Not available

• Date Issued

  Tuesday, July 27, 1920
  104 years ago

• CPC

  • E21B19/16 - Connecting or disconnecting pipe couplings or joints
  • Y10T74/19688 - Bevel
  • Y10T74/19944 - Shaft-admitting insert

• US Classifications

  • 173 - Tool driving or impacting
  • 074 - Machine element or mechanism
  • 175 - Boring or penetrating the earth