1254401

Information

• Patent Grant
• 1254401

• References
• Source

• Patent Number

  1,254,401

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1918
  107 years ago

• CPC

  • E01C5/085 - on prefabricated supporting structures or prefabricated foundation elements except coverings made of layers of similar elements

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 238 - Railways: surface track
  • 405 - Hydraulic and earth engineering