2574090

Information

• Patent Grant
• 2574090

• References
• Source

• Patent Number

  2,574,090

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1951
  74 years ago

• CPC

  • E01C9/06 - Pavings adjacent tramways rails; Pavings comprising railway tracks
  • E01C9/00 - Special pavings Pavings for special parts of roads or airfields
  • E01F9/529 - specially adapted for signaling by sound or vibrations

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 369 - Dynamic information storage or retrieval