2797503

Information

• Patent Grant
• 2797503

• References
• Source

• Patent Number

  2,797,503

• Date Filed

  Not available

• Date Issued

  Tuesday, July 2, 1957
  67 years ago

• CPC

  • E02F3/8816 - Mobile land installations
  • E02D5/187 - the bulkheads or walls being made continuously
  • E02D17/13 - Foundation slots or slits Implements for making these slots or slits
  • E02F3/9218 - with jets
  • E02F5/10 - with arrangements for reinforcing trenches or ditches with arrangements for making or assembling conduits or for laying conduits or cables
  • E02F5/12 - with equipment for back-filling trenches or ditches

• US Classifications

  • 037 - Excavating
  • 175 - Boring or penetrating the earth