2283082

Information

• Patent Grant
• 2283082

• References
• Source

• Patent Number

  2,283,082

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1942
  84 years ago

• CPC

  • E21D15/34 - by axially- moving balls, rollers, or the like
  • E21B19/10 - Slips Spiders; Catching devices

• US Classifications

  • 175 - Boring or penetrating the earth