2784944

Information

• Patent Grant
• 2784944

• References
• Source

• Patent Number

  2,784,944

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1957
  67 years ago

• CPC

  • E21B7/006 - combined with a bucket-type container

• US Classifications

  • 175 - Boring or penetrating the earth