2011531

Information

• Patent Grant
• 2011531

• References
• Source

• Patent Number

  2,011,531

• Date Filed

  Not available

• Date Issued

  Tuesday, August 13, 1935
  89 years ago

• CPC

  • E01C5/04 - made of bricks

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 052 - Static structures
  • 404 - Road structure, process, or apparatus