3426659

Information

• Patent Grant
• 3426659

• References
• Source

• Patent Number

  3,426,659

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1969
  55 years ago

• CPC

  • E02D17/10 - Covering trenches for foundations

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 182 - Fire escape, ladder, or scaffold