1856682

Information

• Patent Grant
• 1856682

• References
• Source

• Patent Number

  1,856,682

• Date Filed

  Not available

• Date Issued

  Tuesday, May 3, 1932
  93 years ago

• CPC

  • E21D11/02 - Lining predominantly with wood

• US Classifications

  • 405 - Hydraulic and earth engineering