3614161

Information

• Patent Grant
• 3614161

• References
• Source

• Patent Number

  3,614,161

• Date Filed

  Not available

• Date Issued

  Tuesday, October 19, 1971
  53 years ago

• CPC

  • E02F3/9275 - with axis of rotation parallel to longitudinal axis of the suction pipe
  • E02F3/20 - with tools that only loosen the material

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 037 - Excavating
  • 175 - Boring or penetrating the earth