1469939

Information

• Patent Grant
• 1469939

• References
• Source

• Patent Number

  1,469,939

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1923
  101 years ago

• CPC

  • E01C9/02 - Wheel tracks

• US Classifications

  • 238 - Railways: surface track
  • 404 - Road structure, process, or apparatus