2390714

Information

• Patent Grant
• 2390714

• References
• Source

• Patent Number

  2,390,714

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1945
  79 years ago

• CPC

  • E21B31/125 - specially adapted for parted wire line or ropes

• US Classifications

  • 175 - Boring or penetrating the earth