3710878

Information

• Patent Grant
• 3710878

• References
• Source

• Patent Number

  3,710,878

• Date Filed

  Not available

• Date Issued

  Tuesday, January 16, 1973
  51 years ago

• CPC

  • E02F3/9212 - Mechanical digging means, e.g. suction wheels
  • E02D17/13 - Foundation slots or slits Implements for making these slots or slits
  • E02F3/205 - with a pair of digging wheels
  • E02F3/9281 - with axis of rotation in horizontal and transverse direction of the suction pipe
  • E21B11/06 - with driven cutting chains or similarly driven tools
  • E21B19/22 - Handling reeled pipe or rod units
  • E21B21/063 - by separating components
  • E21D1/03 - mechanically

• US Classifications

  • 175 - Boring or penetrating the earth
  • 037 - Excavating
  • 405 - Hydraulic and earth engineering