2380457

Information

• Patent Grant
• 2380457

• References
• Source

• Patent Number

  2,380,457

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1945
  80 years ago

• CPC

  • E21B19/086 - with a fluid-actuated cylinder
  • Y10T408/13 - with randomly-actuated stopping means

• US Classifications

  • 173 - Tool driving or impacting
  • 091 - Motors: expansible chamber type
  • 408 - Cutting by use of rotating axially moving tool