3354660

Information

• Patent Grant
• 3354660

• References
• Source

• Patent Number

  3,354,660

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1967
  57 years ago

• CPC

  • E02F5/04 - with digging screws
  • B60P3/035 - for transporting reel units
  • F16L1/032 - the pipes being continuous
  • H02G1/06 - for laying cables

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 037 - Excavating
  • 172 - Earth working
  • 299 - Mining or in situ disintegration of hard material