1573923

Information

• Patent Grant
• 1573923

• References
• Source

• Patent Number

  1,573,923

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1926
  99 years ago

• CPC

  • E01C5/02 - made of natural stones

• US Classifications

  • 404 - Road structure, process, or apparatus