1690259

Information

• Patent Grant
• 1690259

• References
• Source

• Patent Number

  1,690,259

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1928
  96 years ago

• CPC

  • E01C5/085 - on prefabricated supporting structures or prefabricated foundation elements except coverings made of layers of similar elements
  • E02D29/14 - Covers for manholes or the like Frames for covers

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 052 - Static structures