3727701

Information

• Patent Grant
• 3727701

• References
• Source

• Patent Number

  3,727,701

• Date Filed

  Not available

• Date Issued

  Tuesday, April 17, 1973
  51 years ago

• CPC

  • E02D3/054 - involving penetration of the soil
  • E02D3/02 - Improving by compacting
  • E02D3/08 - by inserting stones or lost bodies
  • E02D15/08 - Sinking workpieces into water or soil inasmuch as not provided for elsewhere
  • E21B4/145 - of the self propelled-type

• US Classifications

  • 173 - Tool driving or impacting
  • 091 - Motors: expansible chamber type
  • 175 - Boring or penetrating the earth