1788248

Information

• Patent Grant
• 1788248

• References
• Source

• Patent Number

  1,788,248

• Date Filed

  Not available

• Date Issued

  Tuesday, January 6, 1931
  94 years ago

• CPC

  • E21D11/04 - Lining with building materials

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 052 - Static structures