1490280

Information

• Patent Grant
• 1490280

• References
• Source

• Patent Number

  1,490,280

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1924
  101 years ago

• CPC

  • E21B43/10 - Setting of casings, screens, liners or the like in wells
  • E21D1/08 - while moving the lining downwards

• US Classifications

  • 166 - Wells
  • 175 - Boring or penetrating the earth