3722423

Information

• Patent Grant
• 3722423

• References
• Source

• Patent Number

  3,722,423

• Date Filed

  Not available

• Date Issued

  Tuesday, March 27, 1973
  52 years ago

• CPC

  • E01B25/24 - Supporting rails Auxiliary balancing rails Supports or connections for rails
  • E01B27/025 - by means of non-driven tools

• US Classifications

  • 104 - Railways
  • 037 - Excavating