101638

Information

• Patent Grant
• 101638

• References
• Source

• Patent Number

  101,638

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1870
  154 years ago

• CPC

  • E04F15/047 - with a butcher-block like top surface

• US Classifications

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