1620716

Information

• Patent Grant
• 1620716

• References
• Source

• Patent Number

  1,620,716

• Date Filed

  Not available

• Date Issued

  Tuesday, March 15, 1927
  98 years ago

• CPC

  • E02D29/067 - Floating tunnels Submerged bridge-like tunnels

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 139 - Textiles: weaving