2339449

Information

• Patent Grant
• 2339449

• References
• Source

• Patent Number

  2,339,449

• Date Filed

  Not available

• Date Issued

  Tuesday, January 18, 1944
  80 years ago

• CPC

  • E21B19/008 - Winding units, specially adapted for drilling operations
  • B66D1/7442 - having a horizontal rotation axis

• US Classifications

  • 226 - Advancing material of indeterminate length
  • 254 - Implements or apparatus for applying pushing or pulling force