3807067

Information

• Patent Grant
• 3807067

• References
• Source

• Patent Number

  3,807,067

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1974
  50 years ago

• CPC

  • E02D17/12 - Back-filling of foundation trenches or ditches
  • E02D3/068 - Vibrating apparatus operating with systems involving reciprocating masses
  • E02F5/223 - for back-filling

• US Classifications

  • 037 - Excavating
  • 172 - Earth working
  • 404 - Road structure, process, or apparatus