2351887

Information

• Patent Grant
• 2351887

• References
• Source

• Patent Number

  2,351,887

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1944
  80 years ago

• CPC

  • E21B19/10 - Slips Spiders; Catching devices
  • E21D15/306 - by means of a liquid

• US Classifications

  • 175 - Boring or penetrating the earth