442784

Information

• Patent Grant
• 442784

• References
• Source

• Patent Number

  442,784

• Date Filed

  Not available

• Date Issued

  Tuesday, December 16, 1890
  134 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